national industrial solutions
Industrial Systems
Solutions Guide
national.com/industrial
2009 Vol. 1
Industrial Applications
Amplifiers
Data Converters
Clock and Timing Solutions
Interface Solutions
Thermal Management
Power Management
HVDC Bus
DC-DC
Converter
Energy Management Unit
3.3V
1.8V
Tachometer
Feedback
Inverter
FPGA
Clock
MAC
3-Phase
Motor
REF
Encoder
ADC
ADC
ADC
XFMR
IEEE
1588
PHY
Amp
ADC
ADC
ADC
REF
Industrial Solutions
national.com/industrial
National Semiconductor is a proven and trusted solutions
provider and partner in the industrial market. National’s higheststandard quality, reliable production, and world-class supply
chain management make National the clear choice in analog
semiconductor products for a variety of industrial applications.
National’s analog and power management products and
subsystems deliver robust system performance, diagnostics,
precise timing control, and high-accuracy signal processing to
production facilities and factory floor machinery. The company’s
energy-efficient products, combined with PowerWise
subsystem reference designs, address process sensing and
measurement, motor control, automation control networks, and
machine vision applications. National’s WEBENCH® Designer
tools allow engineers to easily create designs that can be
optimized for cost, efficiency, or size.
Automation Control Networks
National’s precision PHYTER® 10/100 Ethernet PHY solutions provide
high-bandwidth, low-latency networked solutions that enhance
system reliability over temperature. The PHYTER transceiver with
IEEE 1588 Precision Time Protocol (PTP) enables distributed control
and provides high-precision timing synchronization.
Motor Control Sensing
National’s precision amplifiers, data converters, temperature
sensors, power management, and PHYTER transceivers enable
higher-quality products at higher speeds via improved motor
control, finer production control, and lower power consumption
to reduce production costs. National solutions support highperformance simultaneous-sampling AC and servo motor
control. National’s IEEE 1588 solutions achieve high-speed
synchronization (at tens of nanoseconds) for higher quality at
higher speeds.
Machine Vision
National’s 28-bit Channel-Link devices are the industry
standard (Camera Link) for machine vision connectivity. The
easy-to-use serializer/deserializer and signal conditioning
devices extend cable reach over harsh industrial environments
for high-resolution imaging applications. The company’s
camera synchronization solutions enable distribution and
synchronization of high-resolution video content, while the wide
industrial-grade portfolio enables smart cameras, nano-heads
and processing nodes.
Sensing Applications
National’s analog solutions support all key sensing applications.
Precision amplifiers and data converters provide accuracy
and speed to enable better process control and more uniform
products, less fallout, and quicker response times. The WEBENCH
Sensor Designer tool significantly reduces design time and cost
by configuring a complete sensor signal path solution with just a
few key strokes.
Powering Industrial Applications
Whether a system requires efficiency, reliability, ease of use,
or precision, National offers a variety of power management
products to meet the requirements. These solutions include
a broad family of voltage references and low dropout (LDO)
linear regulators to drive sensitive analog and digital loads as
well as regulators and controllers that can convert wide input
voltage ranges down to low output voltages needed at the
Point of Load (PoL). In addition, the family of in-rush current
controllers provides industrial systems with an additional layer
of protection in over-current or short circuit events.
To see all of National’s industrial solutions,
visit: www.national.com/industrial
Contents
Industrial Solutions
Precision Operational Amplifiers ....................................................................................................................................................................... 10
CMOS-Input Operational Amplifiers.................................................................................................................................................................. 11
Low-Noise Operational Amplifiers .................................................................................................................................................................... 12
Rail-to-Rail Operational Amplifiers .................................................................................................................................................................... 13
Micropower and Low-Voltage Operational Amplifiers .................................................................................................................................. 14
Low-Power and Current Sense Operational Amplifiers ................................................................................................................................ 15
High-Speed and High-Voltage Operational Amplifiers .................................................................................................................................. 16
SPI and I2C Interface A/D Converters ............................................................................................................................................................... 17
SPI Interface D/A Converters ............................................................................................................................................................................. 18
GSPS Ultra-High-Speed A/D Converters ......................................................................................................................................................... 19
MSPS High-Speed A/D Converters ................................................................................................................................................................... 20
Clock Conditioners................................................................................................................................................................................................ 21
High-Speed Industrial Ethernet .....................................................................................................................................................................22-23
Serializers/Deserializers...................................................................................................................................................................................... 24
FPGA-Link............................................................................................................................................................................................................... 25
LVDS and CML PHYs ............................................................................................................................................................................................ 26
Temperature Sensors......................................................................................................................................................................................27-28
Power Management............................................................................................................................................................................................. 29
Regulators .........................................................................................................................................................................................................30-31
Controllers.........................................................................................................................................................................................................32-33
Low Dropout (LDO) Linear Regulators .........................................................................................................................................................34-35
Voltage References .............................................................................................................................................................................................. 36
Application Diagrams
Industrial Control Networks .................................................................................................................................................................................. 4
Precision Sensing ................................................................................................................................................................................................5-6
Setting Control Points/Sensor Drive.................................................................................................................................................................... 7
Motor Control Sensing ........................................................................................................................................................................................... 8
Data Acquisition...................................................................................................................................................................................................... 9
Designer’s Corner ....................................................................................................................................................................................................37-38
Design Tools .................................................................................................................................................................................................................. 39
national.com/industrial
3
Industrial Application Overview
Input to I/O Module
Output from I/O Module
Amp
Input Module
Sensor
4 to 20 mA
±5V
0 to 10V
0 to 5V
± 10V
Amp/ADC
Smart
Sensor
Voltage output up to 300 ft/
4 to 20 mA output up 1000 ft
Solutions
Examples
Pages
Amplifier
LMP7715/16, LMP7701, LMP2021
10
ADC
ADC121S021, ADC128S052, ADC121S625,
ADC141S626, ADC161S626
17, 18
DAC
DAC121S101, DAC122S085, DAC124S085
18
Output Module
4 to 20 mA
±5V
0 to 10V
0 to 5V
± 10V
Actuators,
Drivers
Industrial Control Networks
Solutions
Examples
Pages
Ethernet
DP83640, DP83848/49
22, 23
Ser/Des
DS90CR287/88
24
Sensing/Encoder
See Motor Control
8
Camera
Ser/Des
Camera
Link
Current Sensor/
Encoder Interface
Motor
Sensing
Interface
Ser/Des
Robotic
Arm
Sensing
Interface
IEEE
1588 Master
HMI
Drive
Controller
I/O
Controller
Camera
Controller
Motion
Controller
Central
Control
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Industrial Control Network
4
Precision Sensing
Solutions for Pressure Sensors, Load Cells,
Thermocouples, and Optical Sensors
Reduce design time – move rapidly from concept to design
to prototyping
• Select a sensor
• Modify key parameters to meet specification
application needs
• WEBENCH® Sensor Designer tool creates a complete design
(schematic, BOM, detailed error analysis)
• Customized solution to meet specific performance needs
national.com/sensors
• A “Build It” option (PC board/components from design)
expedites prototyping
Photoconductive/Photovoltaic
Pressure, Load, Force
Instrumentation Amplifier Configuration
CF
5V
2.5V
10 V
+
10 V
Amp
RA
VA
10 V
-
RF
RG
5V
RB
Amp
RF
ADC
CSB
GND
SDATA
VIN
SCLK
Photoconductive
diode is biased,
provides faster
response
RF
5V
DPHOTO
CS
C CM
CD
Amp
SCLK
D OUT
+
+
RA
10 V
-
RB
Amp
Pressure
Sensor
ADC
CF
+
Solutions
Examples
Pages
Amplifier
LMP7715/16, LMP2231
10
ADC
ADC101S021, ADC101C02x, ADC121S021, ADC121C02x
17, 18
Photovoltaic more
linear, no leakage
current. Generates
voltage proportional
to light
RF
5V
IIN
-
C CM
Amp
CS
ADC
+
SCLK
DOUT
CD
Differential Amplifier Configuration
Ref
+
Amp
VA
-
VA
RF
R1
ADC
RF
Solutions
Examples
Pages
Amplifier
LMP7701, LMV851, LMP7715, LMV841
10, 15, 11, 13
ADC
ADC101Sxx1, ADC101C02x, ADC121Sxx1, ADC121C02x
17, 18
Power
LM284x, LM500x
31
Reference
LM4132/40
29, 36
Pressure Sensor
0.2 mV/PSI
Amp
+
AV = 100
Solutions
Examples
Amplifier
LMP7715/16, LMP2021/22
10
ADC
ADC161S626, ADC141S626
18
Reference
LM4140
29, 36
national.com/industrial
Pages
5
Precision Sensing
Vibration
+5
100 K
100 K
4
3
+24 V
4 .096 V
1
6
Ref
1 ,2
+
Amp
-
1K
Ultrasonic Speed Sensing
7 ,8
.1 μF
3
1 μF
4
6
5
ADC
SCLK
/CS
SDATA
To
CPU
2
180
100 K
4.096 V
47 K
15 K
+5
330 pF
3 .57 K
+
Amp
-
470 pF
Ultrasonic
Transducer
Receiver
Amplifier and
Amplifier and
Band Pass Filter Band Pass Filter
Amp
470 pF
+5
330 pF
3 .57 K
47 K
100 K
ADC
Amp
Amp
3 .57 K
+
Amp
-
470 pF
+5
330 pF
15K
40 .2 K
10 K
+
Amp
-
470 pF
10 μF
40 .2 K
10 K
40.2 K
10 K
10 μF
DAC
15 K
Amp
Piezoelectric
Sensor
Processor
Comparator
Ultrasonic
Transducer
Receiver
10 μF
Amp
Buffer
Driver
Solutions
Examples
Pages
Solutions
Examples
Amplifier
LMV841, LMP2021/22
13, 10
Amplifier
LMV771, LMV791
15, 14
ADC
ADC141S626, ADC161S626
18
ADC
ADC121S101
17
Power
LM284x, LM500x
31
DAC
DAC121S101
18
Voltage reference
LM4140
29, 36
Comparator
LMV7219
11
Power
LM284x, LM500x
31
Reference
LM4132/40
29, 36
Temperature-Thermocouple Interface
Temperature-RTD
+V
Temp Sensor
4
4
180Ω
3
ADC
+V
Cold Junction
Temperature
4
V DD
1
3
Av = 200
Full Scale ~ 500 o C
1M
V OUT
5
+V
Copper
Type K
Thermocouple
2
5K
REF
3
Copper
Cold Junction
Reference
3
6
Amp
+
4
Amplified
Thermocouple
Output
/CS
5
SDATA
180 Ω
470 pF
1
+ 3
5
Amp
- 4
2
RTD
5 Ref
2
+V
3 +
5
Amp 1
4 2
R2
10K
4
ADC
R7
3.04K
SCLK
6
/CS
5
SDATA
R8
2.5K
2
+V
3 + 5
Amp 1
4 2
1M
R1
10K
R5
10K
100 nF
7 ,8
3
To
μP
4.096 V
6
1
7
-
6
+5
1 ,2
2
SCLK
2
1
470 pF
4
5K
T CJR
Pages
R6
10K
R4
10K
+V
3 +
5
Amp 1
4 2
ADC
VA
R3
10K
2 kΩ
1 μF
LM4040-2.5
Av = (1+2R5/R7)(R1/R2)
Solutions
Examples
Pages
Solutions
Examples
Pages
Amplifier
LMP7701, LMP7715
10
Amplifier
LMP7704, LMP7716
10
ADC
ADC122S021, ADC121S021, ADC102S021, ADC121C02x
17, 18
ADC
ADC121S021, ADC121C02x
17, 18
Temp sensor
LM94022
27
Reference
LM4132/40
29, 36
Reference
LM4140
29, 36
Power
LM284x, LM500x
31
6
Setting Control Points/Sensor Drive
Variable Sensor Voltage Drive
(adjusts sensor output)
Adjustable ADC Reference
(adjusts ADC range)
VA
3
VOUT 1
6 SYNC
Ref
3
+5V
4
2
5
4
1 µF
3
VA
4 DIN
+5V
120 pF
VA
5 SCLK
DAC
Amp
2
-
5
+
1
Amp
–
180⍀
2
0.2 µF
2.048V
VREF
470 pF
2
+5V
1
+IN
2.02 k⍀
AV = 100
ADC
R1
8
7 SCLK
RF
6 DOUT
ADC
3
5 CS
-IN
Amp
4
+5V
0.2 µF
100 k⍀
AV = 100
1
Amp
+
Solutions
+
470 pF
5
–
4
MicroController
VA
RF
100 k⍀
3
DAC
+
1 µF
180⍀
2
Examples
Pages
Solutions
Example
Pages
Amplifier
LMP7701/02
10
Amplifier
LMP7701/02
10
DAC
DAC101S101, DAC121S101
18
DAC
DAC101S101, DAC121S101
18
ADC
ADC121S625
18
ADC
ADC121S625
18
Reference
LM4132
29, 36
Variable Current Source
R
-
R
Offset and Gain Calibration
Amp
SCLK
DOUT
CSB
DAC
IO =
Supply
Voltage
Offset
Adjust
IO
RB
if RA + RB = R
Serial
Output
RA
VDAC
R
ADC
+
Amp
+
DAC
Load
VDAC
DAC
RA
Full-Scale Adjust
From Processor
Solutions
Examples
Pages
Solutions
Examples
Pages
Amplifier
LMP7711
10
Amplifier
LMP7701
10
DAC
DAC081S101, DAC101S101
18
ADC
ADC121S101
17
DAC
DAC122S085
18
national.com/industrial
7
Motor Control Sensing
AC Motor
Rectifier
Servo Motor Control
AC
Motor
Inverter
Rectifier
AC
Motor
Inverter
HV Isolation Barrier
HV Isolation Barrier
Encoder/
Resolver
ADC
ADC
Ref
Current Sense
Ref
Current Sense
Isolation Barrier
Isolation Barrier
Amp
Amp
ADC
Amp
ADC
Controller
ADC
ADC
ADC
ADC
Simultaneous
Sampling ADC
ADC
Ref
Ref
Ref
ADC
Controller
ADC
ADC
Amp
Ref
Temp Sensor
Ref
Power
Ethernet
Power
Temp Sensor
Ethernet
Solutions
Examples
Pages
Solutions
Examples
Pages
Amplifier
LMP7712/31, LMP2015/16
10
Amplifier
LMP7702, LMP7731/32, LMP2015/16
10
ADC
ADC121S021/625, ADC161S626, ADC122Sxxx
17, 18
ADC
17, 18
Reference
LM4128/32
29, 36
ADC121S021, ADC121S625, ADC122Sxxx,
ADC161S626
Ethernet
DP83640, DP83848/49
22 - 23
Ethernet
DP83640, DP83848/49
22 - 23
Reference
LM4128/32
29, 36
Temp sensor
LM73
27
Power
LM2557X, LM557X
29, 30
Multiple Motor Control Synchronization
Low-Side Motor Control
AC
Motor
Inverter
Rectifier
Amp
AMP
Controller
Controller
Controller
Controller
Controller
Controller
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Amp
Voltage and Current
Measurement
Temp Sensor
Industrial Control Network
Ethernet
Ethernet
DSP
Central
Control
IEEE 1588
ADC
Process Monitoring
Power
Process Control
Solutions
Examples
Pages
Solutions
Examples
Pages
Amplifier
LMP7707, LMP8601/02/03, LMP7711
10, 15, 14
Ethernet
DP83640, DP83848I/49I
22 - 23
ADC
ADC124Sxxx
17
Temp sensor
LM94022, LM73
27
8
Data Acquisition
Distance Measurement LIDAR System
Current
Input
Signal
High-Speed Amplifier
+
RS1
ADC
Diff Driver
-
RIN
VOUT-
+
HS Amp
-
RS2
VOUT+
VCMO
VCM_REF
RF
FPGA
RT
PLL/VCO
Solutions
Examples
Pages
Amplifier
LMH6702/03, LMH6553/54
12, 16
ADC
ADC08B3000
19
Clock source
LMK03001C
21
Clock
Source
Industrial Data Acquisition - 1 GSPS Sample Rate
HighImpedance
Input
System
Input
Gain and Bandwidth Control
Single-toDifferential
Conversion
RS1
JFET
Examples
Pages
Amplifier
LMH6552/53/54
16
ADC
ADC08D500, ADC10D1000, ADC08D1020
19
Clock source
LMK03033C
21
Comparator
LMH7322
11
SDRAM
8-Channel
12-Bit A/D
-
ADC
PLL/VCO
FPGA
Memory
Clock
Source
Clock Generation
Industrial Data Acquisition - Up to 1 MSPS
Sample Rate
Flash
8-Channel
12-Bit A/D
Temp pressure
optical voltage
current
Comparator
Multi-Output
DVGA and Filter
RS2
Solutions
+
-
+
+
Amp
-
Comparator-based
Trigger Circuit
0 PWM
(Vents/Actuators)
Micro
processor
CPLD
Digital I/O
Display
8-Channel
12-Bit A/D
Solutions
3.3V at 1A
24 VDC
Power
national.com/industrial
Examples
Pages
Amplifier
LMP7702/04, LMP7715/16, LMP7721,
10
ADC
ADC161S626, ADC128Sxxx, ADC124Sxxx
18, 17
Power
LM25010
29, 31
9
Operational Amplifiers
Precision
Precision Operational Amplifiers
Product ID
Offset Voltage
max, 25C (mV)
TcVos
(μV/°C)
CMRR
(dB)
PSRR
(dB)
Avol
(dB)
Voltage Noise
(nV/√Hz)
Channels
Max Input
Bias
Current
(nA)
Supply
Current Per
Channel
(mA)
Supply Voltage
Range (V)
LMP2015 W
0.005
0.015
130
120
130
35
1
0.003
0.93
2.7 to 5.0
LMP2016 W
0.005
0.015
130
120
130
35
2
0.003
0.93
2.7 to 5.0
LMP2011 W
0.025
0.015
130
120
130
35
1
0.005
0.93
2.7 to 5.0
LMP2021 W
0.005
139
130
160
11
1
0.1
1.1
2.2 to 5.5
LMP2022 W
0.005
139
130
160
11
2
0.1
1.1
2.2 to 5.5
LMP2012 W
0.025
0.015
130
120
130
35
2
0.005
0.93
2.7 to 5.0
LMP2014
LMP7731 W
LMP7732 W
0.025
0.04
0.04
0.01
0.5
0.5
130
120
120
120
129
129
130
130
130
35
2.9
2.9
4
1
2
0.005
30
30
0.93
2.2
2.2
2.7 to 5.0
1.8 to 5.5
1.8 to 5.5
LMP2231 E, W
0.15
0.3
97
120
120
60
1
0.001
0.016
1.6 to 5.5
LMP2232 E, W
0.15
0.3
97
120
120
60
2
0.003
0.014
1.6 to 5.5
LMP2234 E, W
0.15
0.3
97
120
120
60
4
0.001
0.009
1.8 to 5.0
W
LMP7711
LMP7712 W
LMP7715 W
LMP7716 W
0.15
0.15
0.15
0.15
1.0
1.75
1.0
1.8
100
100
100
100
100
100
98
98
110
95
110
110
5.8
5.8
5.8
5.8
1
2
1
2
0.1
0.1
0.1
0.1
1.15
1.3
1.15
1.3
1.8 to 5.5
1.8 to 5.5
1.8 to 5.0
1.8 to 5.0
LMP7717 W
0.15
1.0
100
98
110
5.8
1
0.1
1.15
1.8 to 5.0
LMP7718 E, W
0.15
1.8
100
98
110
5.8
2
0.1
1.3
1.8 to 5.0
LMP7721
LMP7701 W
LMP7707 W
LMP7708 E, W
LMP7709 W
0.15
0.2
0.2
0.2
0.2
1.5
1.0
1.0
1.0
1.0
100
130
138
138
138
96
100
98
98
98
120
119
119
119
119
6.5
9
9
9
9
1
1
1
2
4
0.00002
0.05
0.05
0.05
0.05
1.3
0.715
0.715
0.715
0.715
1.8 to 5.5
2.7 to 12
2.7 to 12
2.7 to 12
2.7 to 12
LMP7702 W
0.22
1.0
130
100
119
9
2
0.4
0.75
2.7 to 12
LMP7704 W
LMV771 E, W
0.22
0.85
1.0
0.35
130
90
100
90
119
100
9
12
4
1
0.4
0.1
0.725
0.6
2.7 to 12
2.7 to 5.0
LMC6062 W
0.8, 0.35
1.0
85
85
140
83
1
0.004, 0.1
0.016
4.5 to 15.5
W
E, W
PowerWise product
10
0.02
(max)
0.02
(max)
E Evaluation
board
W WEBENCH
enabled
Packaging
SOT23-5,
SOIC-8
SOIC-8,
MSOP-8
SOT23-5,
MSOP-8
SOIC-8,
SOT23-5
SOIC-8,
MSOP-8
mini SOIC-8,
SOIC-8
TSSOP-14
SOT-23
SOIC-8
SOIC-8,
SOT23-5
SOIC-8, mini
SOIC-8
TSSOP-14,
SOIC-14
TSOT-6
MSOP-10
SOT23-5
MSOP-8
SOIC-8,
SOT23-8
SOIC-8,
MSOP-8
SOIC-8 Narrow
SOT-23, SOIC-8
SOT-23
MSOP-8
TSSOP-14
SOIC-8,
MSOP-8
TSSOP-14
SC70-5
SOIC-8 Narrow,
MDIP-8
Operational Amplifiers
CMOS Input Op Amps and Comparators
CMOS-Input Operational Amplifiers
Product ID
Vos
Max
(mV)
Description
TcVos
(μV/°C)
CMRR
(dB)
IsTyp
(mA)/
Ch
PSRR
(dB)
Temperature
Range (°C)
Packaging
LMP2015 W
Auto-correcting RRO precision op amp
0.005
0.05
max
130
0.93
120
-40 to 125
SOT23-5,
SOIC-8
LMP2016 W
Auto-correcting RRO precision dual op amp
0.005
0.05
max
130
0.93
120
-40 to 125
MSOP-8,
SOIC-8
LMP7711 W
Precision, 17 MHz, single, low-noise CMOS input op amp
0.15
1.0
100
1.15
100
-40 to 125
SC70-6
LMP7715 W
17 MHz, single, precision, low-noise, CMOS input, 1.8V op amp
0.15
1.0
100
1.15
98
-40 to 125
SOT23-5
LMP7716
17 MHz, dual, precision, low-noise, CMOS input, 1.8V op amp
0.15
1.8
100
1.3
98
-40 to 125
MSOP-8
LMP7701 W
Precision, single CMOS input RRIO, wide supply range op amp
0.2
1.0
130
0.715
100
-40 to 125
SOT23-5
LMP7702
W
Precision, dual, CMOS input RRIO, wide supply range op amp
0.22
1.0
130
0.75
100
-40 to 125
MSOP-8
LMP7704 W
Precision, quad CMOS input RRIO, wide supply range op amp
0.22
1.0
130
0.725
100
-40 to 125
TSSOP-14
W
LMC6001AI
Ultra-low input bias current op amp
0.35
2.5
83
0.45
83
-40 to 85
Plastic DIP-8
LMC6061AI W
Precision, CMOS, single, micropower RRO op amp
0.35
1.0
85
0.02
85
-40 to 85
SOIC-8
LMC6062AI W
Precision, CMOS, dual, micropower RRO op amp
0.35
1.0
85
0.016
85
-40 to 85
SOIC-8
LMC6064AI
LMV771 E, W
Precision, CMOS, quad, micropower RRO op amp
0.35
1.0
85
0.016
85
-40 to 85
SOIC-14
Low offset, low-noise, single RRO op amp
0.85
0.35
90
0.6
90
-40 to 125
SC70-5
W
W
LMV751
LMV772 E, W
Low offset, low-noise, CMOS input op amp
1.0
1.0
103
0.6
107
-40 to 85
SOT23-5
Low offset, low-noise, dual RRO op amp
1.0
0.35
90
0.6
90
-40 to 125
SOIC-8
LMV791
W
17 MHz, single, low-noise, CMOS input, 1.8V op amp with shutdown
1.35
1.0
100
1.15
98
-40 to 125
SC70-6
LMV792 W
17 MHz, dual low-noise, CMOS input, 1.8V op amp with shutdown
1.35
1.8
100
1.3
98
-40 to 125
MSOP-10
LMV796 W
17 MHz, single, low-noise, CMOS input, 1.8V op amp
1.35
1.0
100
1.15
98
-40 to 125
SOT23-5
LMV797 W
17 MHz, dual low-noise, CMOS input, 1.8V op amp
1.35
1.8
100
1.3
98
-40 to 125
MSOP-8
LM6211 W
Low-noise, RRO op amp with CMOS input and 24V operation
2.5
2.0
98
0.96
98
-40 to 125
SOT23-5
LMV716
5 MHz, low-noise, RRO CMOS input op amp
5.0
5.0
80
1.6
82
-40 to 85
MSOP-8
W
W
High-Speed Comparators
Product ID
Channels
Response
Time (μs)
Offset Voltage
max, 25C (mV)
Supply Voltage
Range (V)
Supply Current
Per Channel (mA)
Input Bias
Current (μA)
Output
Compatibility
Temperature
Range (°C)
Packaging
LMV7219
1
0.007
6
2.7 to 5
1.1
0.45
Push-pull
-40 to 85
SC70-5, SOT23-5
LMV7235/39
1
0.045
6
2.7 to 5
0.065
0.03
Open drain/
Push-pull
-40 to 85
SC70-5, SOT23-5
LMH7220
1
0.0029
2.7
2.7 to 12
7.5
1.5
LVDS
-40 to 125
TSOT-6
LMH7322 E
2
0.0007
8
2.7 to 12
22.8
2.6
RS(P)ECL,
LVDS
-40 to 125
LLP-24
LMH7324 E
4
0.0007
9.5
5 to 12
17.2
2.6
RS(P)ECL,
LVDS
-40 to 125
LLP-32
PowerWise product
E Evaluation
national.com/industrial
board
W WEBENCH
enabled
11
Operational Amplifiers
Low Noise
Low-Noise Operational Amplifiers
Product ID
Channels
Voltage
Noise
(nV/√Hz)
LMP7721
LMP7707 W
LMP7708 W
LMP7709 W
LMH6624 W
LMH6626 W
LMH6622 W
LMH6702 W
LMH6703
LMH6628 W
LMP7731 W
LMP7732 W
LM833 W
LMP7711 W
LMP7712 W
LMP7715 W
LMP7716 W
LMP7717 W
LMP7718 W
LMV791 W
LMV792 W
LMV793 W
LMV794 W
LMV796 W
LMV797 W
LM6211 W
LMV751 W
LMP7701 W
LMP7702 W
LMP7704 W
LMV771 W
LMV772 W
1
1
2
4
1
2
2
1
1
2
1
2
2
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
2
4
1
2
6.5
9.0
9.0
9.0
0.92
1
1.6
1.83
2.3
2.0
2.9
2.9
4.5
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
6.0
6.5
9.0
9.0
9.0
12
12
E, W
PowerWise product
12
E Evaluation
Max
Input Bias
Current
(nA)
Offset
Voltage
max, 25C
(mV)
Supply
Current Per
Channel
(mA)
Gain
Bandwidth
(MHz)
Supply
Voltage
Range (V)
Temperature
Range (°C)
Packaging
.00002
.05
.05
.05
25000
25000
15000
34000
23000
20000
30
30
1050
0.05
0.05
0.05
0.05
0.05
0.05
0.001
0.001
0.001
0.001
0.001
0.001
0.005
0.1
0.001
0.001
0.001
0.1
0.1
.15
0.2
0.2
0.2
0.5
0.5
1.2
4.5
7.0
2.0
0.04
0.04
5.0
0.15
0.15
0.15
0.15
0.15
0.15
1.35
1.35
1.35
1.35
1.35
1.35
2.5
1.0
0.2
0.22
0.22
0.85
1.0
1.3
0.715
0.715
0.715
12
12
4.3
12.5
11
9.0
2.2
2.2
2.5
1.15
1.3
1.15
1.3
1.15
1.15
1.15
1.3
1.15
1.3
1.15
1.3
0.96
0.6
0.715
0.75
0.725
0.6
0.6
17
14
14
14
1500
1300
160
1700
1200
300
22
22
15
17
17
17
17
88
88
17
17
88
88
17
17
17
5.0
2.5
2.5
2.5
3.5
3.5
1.8 to 5.5
2.7 to 12
2.7 to 12
2.7 to 12
5.0 to 12
5.0 to 12
5.0 to 12
10 to 12
8.0 to 12
5.0 to 12
1.8 to 5.5
1.8 to 5.5
10 to 36
1.8 to 5.5
1.8 to 5.5
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
5.0 to 24
2.7 to 5.5
2.7 to 12
2.7 to 12
2.7 to 12
2.7 to 5.0
2.7 to 5.0
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 85
-40 to 85
-40 to 85
-55 to 125
-40 to 125
-40 to 125
-40 to 85
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 85
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
SOIC-8 Narrow
SOT-23
MSOP-8
TSSOP-14
SOIC-8, SOT23-5
SOIC-8, MSOP-8
SOIC-8, MSOP-8
SOIC-8, SOT23-5
SOIC-8 Narrow, SOT23-6
MSOP-8,
SOT23-5
SOIC-8
SOIC-8, MDIP-8, MSOP-8
TSOT-6
MSOP-10
SOT23-5
MSOP-8
SOIC-8, SOT23-5
SOIC-8, MSOP-8
TSOT-6
MSOP-10
SOIC-8, SOT23-5
SOIC-8, MSOP-8
SOT23-5
SOIC-8
SOT23-5
SOT23-5
SOIC-8, SOT23-5
SOIC-8, MSOP-8
TSSOP-14
SC70-5
SOIC-8, MSOP-8
W WEBENCH
enabled
board
Operational Amplifiers
Rail-to-Rail
Rail-to-Rail Operational Amplifiers
Max
Input Bias
Current
(nA)
.05
.05
.05
2400
2400
7200
Supply
Voltage
Range (V)
2.7 to 12
2.7 to 12
2.7 to 12
2.7 to 11
2.7 to 11
3.0 to 5.5
Supply
Current Per
Channel
(mA)
0.715
0.715
0.715
1.25
1.25
1.1
Gain
Bandwidth
(MHz)
14
14
14
140
140
.060
Voltage
Noise
(nV/√Hz)
9.0
9.0
9.0
10
10
890
Output
Swing
High
(MV)
110
120
120
255
255
4980
Output
Swing
Low
(mV)
80
120
120
270
275
20
Temperature
Range (°C)
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
Product ID
LMP7707 W
LMP7708 E, W
LMP7709 W
LMH6618 E, W
LMH6619 E, W
LMP8601 E
Channels
1
2
4
1
2
1
Offset
Voltage
max, 25C
(mV)
0.2
0.2
0.2
0.6
0.6
1.0
LMP8602
1
1.0
7200
3.0 to 5.5
1.1
.060
890
4980
20
-40 to 125
LMP8603
1
1.0
7200
3.0 to 5.5
1.1
.060
890
4980
20
-40 to 125
LMP7731 W
LMP7732 W
1
2
0.04
0.04
30
30
1.8 to 5.5
1.8 to 5.5
2.2
2.2
22
22
2.9
2.9
50
50
50
50
-40 to 125
-40 to 125
LMP7701 W
1
0.2
0.001
2.7 to 12
0.715
2.5
9.0
110
80
-40 to 125
LMP7702 W
2
0.22
0.001
2.7 to 12
0.75
2.5
9.0
120
120
-40 to 125
LMP7704 W
LMV841 E
4
1
0.22
0.5
0.001
0.01
2.7 to 12
2.7 to 12
0.725
1.02
2.5
4.5
9.0
20
120
100
120
120
-40 to 125
-40 to 125
LMV842
2
0.5
0.01
2.7 to 12
1.02
4.5
20
100
120
-40 to 125
LMV844
4
0.5
0.01
2.7 to 12
1.02
4.5
20
100
120
-40 to 125
LMC6462
2
0.5
0.005
3.0 to 15.5
0.02
0.05
80
4980
20
-40 to 85
LMC6482
2
0.75
0.004
3.0 to 15.5
0.5
1.5
37
4700
240
-40 to 85
LPV511
LMC7101
1
1
3.0
3.0
1.9
0.064
2.7 to 12
2.7 to 15.5
0.00097
0.5
0.027
1.1
320
37
4890
4700
200
200
-40 to 85
-40 to 85
LMC6484
4
3.0
0.004
3.0 to 15
0.5
1.5
37
4980
20
-40 to 85
LMC6494
4
3.0
0.2
2.5 to 15.5
0.5
1.5
37
4980
20
-40 to 125
LMC8101
1
5.0
0.064
2.7 to 10
0.7
1.0
36
4730
-4950
-40 to 85
LM7301
1
6.0
250
2.2 to 30
0.6
4.0
36
4930
120
-40 to 85
LMC6492
2
6.0
0.2
2.5 to 15.5
0.5
1.5
37
4900
240
-40 to 125
PowerWise product
E Evaluation
national.com/industrial
board
W WEBENCH
Packaging
SOT-23
MSOP-8
TSSOP-14
TSOT-6
SOIC-8 Narrow
SOIC-8 Narrow
SOIC-8,
MSOP-8
SOIC-8,
MSOP-8
SOT23-5
SOIC-8
SOIC-8,
SOT23-5
SOIC-8,
MSOP-8
TSSOP-14
SC70-5
SOIC-8,
MSOP-8
TSSOP-14
SOIC-8,
MDIP-8
SOIC-8,
MDIP-8
SC70-5
SOT23, SOIC-8
SOIC-14,
MDIP-14
SOIC-14
SOT23-5,
micro SMD
SOIC-8,
SOT23-5
SOIC-8
enabled
13
Operational Amplifiers
Micropower and Low Voltage
Micropower Operational Amplifiers
Product ID
Channels
Supply Current Per
Channel (mA)
Gain Bandwidth
(MHz)
Offset Voltage
max, 25C (mV)
Voltage Noise
(nV/√Hz)
Output Current
(mA)
Packaging
LMC6442
LPV511 W
LMP2234 W
LPV321 W
LM4250
LMC6042
LMC6044
LMC6041
LMC6061/62/64
LMC7111
LMV551/52/54 W
LMV651 W
LMV641 E
LPV531
LMP2231 W
LMP2232 W
LPV324
LPV358
LMC6061
LMC6062 W
LMC6064 W
2
1
4
1
1
2
4
1
1/2/4
1
1/2/4
1
1
1
1
2
4
2
1
2
4
0.00095
0.00097
0.009
0.009
0.01
0.01
0.01
0.014
0.02/.016
0.025
0.037
0.11
0.158
0.425
0.016
0.014
0.0075
0.007
0.024
0.019
0.019
0.01
0.027
0.13
0.152
0.25
0.1
0.1
0.075
0.1
0.05
3.0
12
10
4.6
0.13
0.13
0.152
0.152
0.1
0.1
0.1
3.0
3.0
0.15
7.0
6.0
3.0
6.0
6.0
0.35
7.0
3.0
1.5
0.5
4.5
0.15
0.15
7.0
7.0
0.8, .35
0.8, .35
0.8, .35
170
320
60
146
40
83
83
83
83
110
70
17
14
25
60
60
146
146
83
83
83
0.9
0.5
22
17
12
21
21
21
21
7.0
10
15
26
15
22
22
17
17
21
21
21
SOIC-8, MDIP-8
SC-70
SOIC-14, TSSOP-14
SOT-23
SOIC-8, MDIP-8, TO99-8
SOIC-8, MDIP-8
SOIC-15, MDIP-14
SOIC-8, MDIP-8
SOIC-8, MDIP-8/14, CERDIP-8
SOT23-5
SC70-5, SOIC-8, TSSOP-14
SC70-5
SOIC-8, SC70-5
TSOT-6
SOIC-8, SOT23-5
SOIC-8, mini SOIC-8
SOIC-14 Narrow, TSSOP-14
SOIC-8, mini SOIC-8
SOIC-8, MDIP-8
SOIC-8, MDIP-8
SOIC-14, MDIP-14
PowerWise product
E Evaluation
board
W WEBENCH
enabled
Low-Voltage Operational Amplifiers
Product ID
Channels
Supply
Voltage
Range (V)
LMV951
LM10
LMC6442
LM6142 W
LM6144 W
LMP7716 W
LMP7717 W
LMV791 W
LMV792 W
LMV793 W
LMV794 W
LMV796 W
LMV797
LMP7711/12 W
1
1
2
2
4
2
1
1
2
1
2
1
2
1/2
0.9 to 3.0
1.1 to 45
1.8 to 11
1.8 to 24
1.8 to 24
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.0
1.8 to 5.5
2.8
4.0
3.0
1.0
2.5
0.15
0.15
1.35
1.35
1.35
1.35
1.35
1.35
0.15
0.57
0.3
0.00095
0.65
0.65
1.3
1.15
1.15
1.3
1.15
1.15
1.15
1.3
1.15/1.3
2.8
0.09
0.01
17
17
17
88
17
17
88
88
17
17
17
25
50
170
16
16
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
5.8
✔
—
—
—
—
—
—
✔
✔
—
—
—
—
✔
-40 to 125
0 to 70
-40 to 85
-40 to 85
-40 to 85
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
-40 to 125
LMC6035
2
2.0 to 15.5
5.0
0.4
1.4
27
—
-40 to 85
LM4250
LM7301 W
LMP2231 W
LMP7721 E,W
1
1
1
1
2.0 to 36
2.2 to 30
1.6 to 5.5
1.8 to 5.5
6.0
6.0
0.15
0.15
0.01
0.6
0.016
1.3
0.25
4.0
0.13
17
40
36
60
6.5
—
—
—
—
0 to 70
-40 to 85
-40 to 125
-40 to 125
PowerWise product
14
E Evaluation
Offset Voltage
max, 25C (mV)
Supply Current
Per Channel
(mA)
Gain
Bandwidth
(MHz)
Voltage
Noise
(nV/√Hz)
board
W WEBENCH
enabled
Shutdown
Temperature
Range (°C)
Packaging
TSOT-6
SOIC-14, MDIP-8, TO5-8
SOIC-8, MDIP-8
SOIC-8, MDIP-8
SOIC-14, MDIP-14
MSOP-8
SOIC-8, SOT23-5
TSOT-6
MSOP-10
SOIC-8, SOT23-5
SOIC-8, MSOP-8
SOT23-5
MSOP-8
TSOT-6
micro SMD-8, SOIC-8,
MSOP-8
SOIC-8, MDIP-8, TO99-8
SOIC-8, SOT23-5
SOIC-8, SOT23-5
SOIC-8 Narrow
Operational Amplifiers
Low Power and Current Sense
Low-Power Operational Amplifiers
Product ID
LM4250
LM346
LMC6572/74
LPC660
LMV651 E
LMV652 E
LMV981 E
Channels
1
4
2/4
4
1
2
1
Supply
Current Per
Channel (mA)
0.01
0.035
0.038
0.04
0.11
0.11
0.116
LMV654 E
4
0.119
12
1.8
300
17
2.7 to 5.5
-40 to 125
TSSOP-14
LMV641 E
LF442
LM10
LM6132/34 W
LMV851 E
LMV852 E
LMV854 E
LPV531
LMC6001 W
LMV951
LM7301
LMV771 E
LMV772
LMV774
LM6142 W
LM6144 W
LMP7704
LMP7702
1
2
1
2/4
1
2
4
1
1
1
1
1
2
4
2
4
4
2
0.158
0.2
0.3
0.36
0.41
0.41
0.41
0.425
0.45
0.57
0.6
0.6
0.6
0.6
0.65
0.65
0.725
0.75
10
1
0.09
10
8
8
8
4.6
1.3
2.8
4
3.5
3.5
3.5
17
17
2.5
2.5
0.5
5.0
4.0
6.0/2.0
1.0
1.0
1.0
4.5
0.35
2.8
6.0
0.85
1.0
1.0
1.0
2.5
0.22
0.22
105
3
40
350/300
0.5
0.5
0.5
0.01
0.002
85
250
0.1
0.1
0.1
526
526
0.001
0.001
14
35
50
27
11
11
11
25
22
25
36
12
12
12
16
16
9.0
9.0
2.7 to 12
6 to 36
1.1 to 45
2.7 to 24
2.7 to 5
2.7 to 5
2.7 to 5
2.7 to 5
4.5 to 15.5
0.9 to 3
2.2 to 30
2.7 to 5
2.7 to 5
2.7 to 5
1.8 to 24
1.8 to 24
2.7 to 12
2.7 to 12
-40 to 125
0 to 70
0 to 70
-40 to 85
-40 to 125
-40 to 125
-40 to 125
-40 to 85
-40 to 85
-40 to 125
-40 to 85
-40 to 125
-40 to 125
-40 to 125
-55 to 125
-40 to 85
-40 to 125
-40 to 125
SOIC-8, SC70-5
TO99-8, MDIP-8
SOIC-14, MDIP-8, TO5-8
SOIC-8, MDIP-8, SOIC-14, MDIP-14
SC70-5
SOIC-8
TSSOP-14
TSOT-6
MDIP-8
TSOT-6
SOIC-8, SOT23-5
SC70-5
SOIC-8, MSOP-8
TSSOP-14
SOIC-8, MDIP-8
SOIC-14, MDIP-14
TSSOP-14
SOIC-8, MSOP-8
PowerWise product
E Evaluation
Gain
Bandwidth
(MHz)
0.25
1.2
0.22
0.35
12
12
1.5
Offset Voltage
max, 25C (mV)
6.0
6.0
3.0/7.0
3.0
1.5
1.5
4.0
Max Input
Bias Current
(nA)
20
250
0.01
0.004
100
100
50
Voltage
Noise
(nV/√Hz)
40
28
45
42
17
17
50
Supply
Voltage
Range (V)
2 to 36
3 to 36
2.7 to 10
5 to 15
2.7 to 5.5
2.7 to 5.5
1.8 to 5
Temp
Range
(°C)
0 to 70
0 to 70
-40 to 85
-40 to 85
-40 to 125
-40 to 125
-40 to 125
Packaging
SOIC-8, MDIP-8, TO99-8
SOIC-16, MDIP-16
SOIC-8, SOIC-14
SOIC-14
SC70-5
SOIC-8
micro SMD-6, SC70-5, SOT23-5
board
W WEBENCH
enabled
Current-Sense Amplifiers
Product
ID
LMP8601
LMP8602
LMP8603
Description
High common-mode,
AV = 20, bidirectional
High common-mode,
AV = 50, bidirectional
High common-mode,
AV = 100, bidirectional
national.com/industrial
Vcm Range
(V)
Vos (mV)
(max)
Max TCVOS
(μV/°C)
Gain Output
(V/V)
Supply Voltage
Range (V)
Supply
Current (mA)
PSRR
(dB)
Packaging
-22 to 60 (5V supply)
1.0
10
20
3 to 5.5
1.1
90
SOIC-8 Narrow
-22 to 60 (5V supply)
1.0
10
50
3 to 5.5
1.1
90
SOIC-8, MSOP-8
-22 to 60 (5V supply)
1.0
10
100
3 to 5.5
1.1
90
SOIC-8, MSOP-8
15
Operational Amplifiers
High Speed and High Voltage
High-Voltage Operational Amplifiers
Product ID
Channels
Supply
Voltage
Range (V)
Supply
Current Per
Channel (mA)
Gain
Bandwidth
(MHz)
Slew Rate
(V/μs)
Offset
Voltage max,
25C (mV)
Voltage
Noise
(nV/√Hz)
Output
Current
(mA)
Tempe
Range
(°C)
W
LM6144
LM6142 W
LM833 E
LM4250
LM7301 W
LM8272 W
LM8262 W
LM8261 W
LMC8101
LMC7101
LM6154 W
LM6152 W
LM6134 W
LM6132 W
LM7121 W
LM6211 W
LM6171
LM6172
LF444
LF442
LM6181
LMC6462
LMC6464
LMC6482
4
2
2
1
1
2
2
1
1
1
4
2
4
2
1
1
1
2
4
2
1
2
4
2
1.8 to 24
1.8 to 24
10 to 36
2.0 to 36
2.2 to 30
2.5 to 24
2.5 to 30
2.5 to 30
2.7 to 10
2.7 to 15.5
2.7 to 24
2.7 to 24
2.7 to 24
2.7 to 24
4.5 to 33
5.0 to 24
5.5 to 34
5.5 to 36
6.0 to 36
6.0 to 44
7.0 to 32
3.0 to 15.5
3.0 to 15.5
3.0 to 15.5
0.65
0.65
2.5
0.01
0.6
0.9
1.05
0.97
0.7
0.5
1.4
1.4
0.36
0.36
4.8
0.96
2.5
2.3
0.15
0.15
7.5
0.02
0.02
0.5
17
17
15
0.25
4.0
13
21
21
1.0
1.1
75
75
10
10
175
17
100
100
1.0
1.0
100
0.05
0.05
1.5
25
25
7.0
0.2
1.25
12
12
12
1.0
1.1
30
30
14
14
1300
5.5
3600
3000
1.0
1.0
1400
0.015
0.015/0.028
1.3
1.0
2.5
5.0
6.0
6.0
5.0
7.0
5.0
5.0
7.0
5.0
2.0
2.0
6.0
8.0
2.5
3.0
3.0
1.0
1.0
5.0
0.5, 3.0
0.5, 3.0
0.75, 3.0
16
16
4.5
40
36
15
15
15
36
37
9.0
9.0
27
27
17
6.0
12
12
35
35
4.0
80
80
37
8.0
8.0
40
12
9.5
100
60
53
49
24
6.2
6.2
4.3
4.3
52
16
135
85
8.0
6.8
130
27
27
30
-40 to 85
-40 to 85
-40 to 85
0 to 70
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
0 to 70
0 to 70
-40 to 85
-40 to 85
-40 to 85
-40 to 125
-40 to 85
-40 to 85
0 to 70
-55 to 125
-40 to 85
-55 to 125
-55 to 125
-55 to 125
LMC6484
4
3.0 to 15.5
0.5
1.5
1.3
3.0
37
30
-55 to 125
LMC6061
LMC6062
LMC6064
1
2
4
0.0016, .02
0.0016, .02
0.0016, .02
0.1
0.1
0.1
0.035
0.035
0.035
0.8, 0.35
0.8, 0.35
0.8, 0.35
83
83
83
21
21
21
40 to 85
40 to 85
40 to 85
LMC660
4
0.38
1.4
1.1
6.0, 3.0
22
21
-40 to 85
SOIC-14 Narrow, MDIP-14
LMC662
2
4.5 to 15.5
4.5 to 15.5
4.5 to 15.5
4.75 to
15.5
4.75 to
15.5
SOIC-14
SOIC-8, MDIP-8, MDIP-14
SOIC-8, MDIP-8, MSOP-8
TO99-8, SOIC-8, MDIP-8
SOIC-8, SOT23-5
MSOP-8
MSOP-8
SOT23-5
micro SMD-8, SOIC-8
SOT23-5, SOIC-8
SOIC-14
SOIC-8
SOIC-14, MDIP-14
SOIC-8, MDIP-8
SOIC-8, SOT23-5
SOT23-5
SOIC-8, MDIP-8
SOIC-8, MDIP-8
SOIC-14, MDIP-14
TO99-8, MDIP-8
SOIC-8, SOIC-16, MDIP-8
SOIC-8, MDIP-8
SOIC-14, MDIP14
SOIC-8, MDIP-8, mini SOIC-8
SOIC-14, MDIP-14, mini
SOIC-14
SOIC-8, MDIP-8
SOIC-8, MDIP-8
SOIC14, MDIP-14
0.38
1.4
1.1
6.0, 3.0
22
21
-40 to 85
SOIC-14 Narrow, MDIP-14
Packaging
High-Speed Fully Differential Amplifiers
Product ID
Unity Gain BW
Slew Rate
(MHz) at AVCL (V/V) (V/μs)
Supply Voltage
Range (V)
Supply Current
per Channel (mA)
Channels
Voltage Noise
(nV/√Hz)
2nd/3rd HD (dBc)
Packaging
SOIC-8, MSOP-8
LMH6550
400 at 1
3000
5.0 to 12
20
1
6.0
-92/-103 at VO = 2 VPP,
f = 5 MHz, RL = 800Ω
LMH6551
370 at 1
2400
3.0 to 12
12.5
1
6.0
-94/-96 at VO = 2 VPP,
f = 5 MHz, RL=800Ω
SOIC-8, MSOP-8
LMH6552 E
1500 at 1
3800
4.5 to 12
19
1
1.1
-92/-93 at VOUT = 2 VPP,
f = 20 MHz, RL = 800Ω
SOIC-8, LLP-8
LMH6553 E
900 at 1
2300
4.5 to 12
29.5
1
1.1
-79/-90 at VOUT = 2 VPP,
f = 20 MHz, RL = 800Ω
PSOP-8, LLP-8
LMH6554
2500 at 1
6200
4.7 to 5.3
52
1
0.9
-68/-70 at VOUT = 2 VPP,
f = 250 MHz, RL = 200Ω
FCOL-14
LMH6555 E
1200 at 13.6 dB
1300
3.0 to 3.6
120
1
19
-60/-67 at VOUT = 0.8 VPP,
f = 250 MHz, RL = 100Ω
LLP-16
PowerWise product
16
E Evaluation
board
W WEBENCH
Enabled
A/D Converters (ADCs)
SPI Interface, Single-Ended Input
SPI Interface, Single-Ended Input ADCs*
Pin/Func.
Comp. Family
Product ID
Res.
(bit)
Input
Channels
Sample Rate
Range (sps)
INL (LSB)
ENOB
(bit)
SINAD
(dB)
Supply Voltage
Range (V)
Temperature
Range (°C)
Packaging
+0.45; -0.3
7.9
49.5
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC081S021 E, W
8
1
50K to 200K
ADC081S051
E, W
8
1
200K to 500K
+0.06; -0.04
7.9
49.5
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC081S101 E, W
8
1
500K to 1M
±0.05
7.9
49.7
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC101S021 E, W
10
1
50K to 200K
+0.14; -0.13
9.9
61.5
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC101S101 E, W
10
1
500K to 1M
±0.2
9.9
61.7
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC121S021 E, W
12
1
50K to 200K
+0.45; -0.4
11.7
72
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC121S051 E, W
12
1
200K to 500K
+0.45; -0.4
11.6
72
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC121S101
E, W
12
1
500K to 1M
±0.4
11.7
72
2.7 to 5.25
-40 to 125
SOT23-6, LLP-6
ADC101S051 E, W
10
1
200K to 500K
+0.15; -0.09
9.9
61.5
2.7 to 5.25
-40 to 85
SOT23-6, LLP-6
ADC082S021 E, W
8
2
50K to 200K
±0.04
7.9
49.6
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC082S051 E, W
8
2
200K to 500K
+0.12; -0.06
7.9
49.5
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC082S101 E, W
8
2
500K to 1M
±0.13
7.9
49.6
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC102S021 E, W
10
2
50K to 200K
±0.13
9.9
61.8
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC102S051 E, W
10
1
200K to 500K
+0.2; -0.1
10
61.7
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC102S101
E, W
10
2
500K to 1M
+0.4; -0.1
9.9
61.6
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC122S021 E, W
12
2
50K to 200K
±0.35
11.7
72
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC122S051
E, W
12
2
200K to 500K
±0.5
11.7
72
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC122S101 E, W
12
2
500K to 1M
±0.64
11.7
72
2.7 to 5.25
-40 to 85
mini SOIC-8
ADC084S021 E, W
8
4
50K to 200K
±0.04
7.9
49.6
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC084S051 E, W
8
4
200K to 500K
+0.12; -0.06
7.9
49.5
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC084S101 E, W
8
4
500K to 1M
±0.13
7.9
49.6
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC104S021 E, W
10
4
50K to 200K
±0.13
9.9
61.8
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC104S051 E, W
10
4
200K to 500K
+0.2; -0.1
10
61.7
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC104S101
E, W
10
4
500K to 1M
+0.4; -0.1
9.9
61.6
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC124S021 E, W
12
4
50K to 200K
±0.35
11.7
72
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC124S051
E, W
12
4
200K to 500K
±0.5
11.7
72
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC124S101 E, W
12
4
500K to 1M
±0.64
11.7
72
2.7 to 5.25
-40 to 85
mini SOIC-10
ADC088S022
E, W
8
8
50K to 200K
±0.04
7.9
49.5
2.7 to 5.25
-40 to 105
TSSOP-16
ADC088S052 E, W
8
8
200K to 500K
±0.05
7.9
49.6
2.7 to 5.25
-40 to 105
TSSOP-16
ADC088S102 E, W
8
8
500K to 1M
±0.05
7.9
49.6
2.7 to 5.25
-40 to 105
TSSOP-16
ADC108S022 E, W
10
8
50K to 200K
±0.10
10
61.8
2.7 to 5.25
-40 to 105
TSSOP-16
ADC108S052 E, W
10
8
200K to 500K
±0.10
10
61.8
2.7 to 5.25
-40 to 105
TSSOP-16
ADC108S102
E, W
10
8
500K to 1M
±0.2
10
61.8
2.7 to 5.25
-40 to 105
TSSOP-16
ADC128S022 E, W
12
8
50K to 200K
±0.4
11.8
73
2.7 to 5.25
-40 to 105
TSSOP-16
ADC128S052
E, W
12
8
200K to 500K
±0.4
11.8
73
2.7 to 5.25
-40 to 105
TSSOP-16
ADC128S102 E, W
12
8
500K to 1M
±0.5
11.8
73
2.7 to 5.25
-40 to 105
TSSOP-16
* Reference Source: Supply
PowerWise product
E Evaluation
national.com/industrial
board
W WEBENCH
enabled
17
ADCs and DACs
SPI and I2C Interface
SPI Interface DACs
Pin/Func.
Comp.
Family
Product ID
DAC081S101
Resolution
(bit)
Input
Channels
(Count)
Settling
Time (μs)
INL (LSB)
Reference
Source
Supply Voltage
Range (V)
Temperature
Range (°C)
Packaging
8
1
3.0
±0.2
Supply
2.7 to 5.5V
-40 to 105
TSOP-6, MSOP-8
DAC101S101 E
10
1
8.0
±0.6
Supply
2.7 to 5.5V
-40 to 105
TSOP-6, MSOP-8
DAC121S101
E
12
1
8.0
±2.6
Supply
2.7 to 5.5V
-40 to 105
TSOP-6, MSOP-8
DAC082S085 E
8
2
4.5
±0.14
External
2.7 to 5.5V
-40 to 105
mini SOIC-10, LLP-10
DAC084S085
E
8
4
8.5
±0.14
External
2.7 to 5.5V
-40 to 105
mini SOIC-10, LLP-10
DAC102S085 E
10
2
6.0
±0.7
External
2.7 to 5.5V
-40 to 105
mini SOIC-10, LLP-10
DAC104S085 E
10
4
8.5
±0.7
External
2.7 to 5.5V
-40 to 105
mini SOIC-10, LLP-10
DAC122S085
E
12
2
8.5
±2.4
External
2.7 to 5.5V
-40 to 105
mini SOIC-10, LLP-10
DAC124S085 E
12
4
8.5
±2.4
External
2.7 to 5.5V
-40 to 105
mini SOIC-10, LLP-10
DAC088S085
E
8
8
8.0
±0.5
External
2.7 to 5.5V
-40 to 125
TSSOP-16, LLP-16
DAC108S085 E
10
8
8.0
±2.0
External
2.7 to 5.5V
-40 to 125
TSSOP-16, LLP-16
DAC128S085
12
8
8.0
±8.0
External
2.7 to 5.5V
-40 to 125
TSSOP-16, LLP-16
E
E
Single-Ended Input I2C Compatible A/D Converters with Alarm and Multiple Addresses
!
NEW
!
NEW
!
NEW
Speed
Range (kSPS)
Supply
Voltage
Range(V)
Typ Power (mW)
3V
5V
INL (LSB)
Temp
Range (°C)
1
5.5 to 189
2.7 to 5.5
0.26
0.78
±0.2
-40 to 105
10
1
5.5 to 189
2.7 to 5.5
0.26
0.78
±0.5
-40 to 105
ADC121C021 E W
12
1
5.56 to 189
2.7 to 5.5
0.26
0.78
±0.5
-40 to 105
ADC081C027 E W
8
1
5.5 to 189
2.7 to 5.5
0.26
0.78
±0.5
-40 to 105
✔
TSOT-6
ADC101C027 E W
10
1
5.5 to 189
2.7 to 5.5
0.26
0.78
±0.5
-40 to 105
✔
TSOT-6
ADC121C027
12
1
5.56 to 189
2.7 to 5.5
0.26
0.78
±0.5
-40 to 105
✔
TSOT-6
Product ID
Res
(bits)
Inputs
ADC081C021 E W
8
ADC101C021 E W
EW
Pin and
Function
Compatible
Multi
Address
Alarm
✔
✔
✔
✔
✔
✔
✔
✔
✔
Packaging
TSOT-6,
MSOP-8
TSOT-6,
MSOP-8
TSOT-6,
MSOP-8
Differential-Input SPI A/D Converters
Speed
Range
(kSPS)
Supply
Voltage
Range(V)
Typ Power (mW)
Static Perform (Typ)
3V
5V
INL (LSB)
1
50 to 200
4.5 to 5.5
—
2.25
- 0.5 / -0.3
12
1
200 to 500
4.5 to 5.5
—
9
12
1
500 to 1000
4.5 to 5.5
—
11.5
ADC122S625 E W
12
2
50 to 200
4.5 to 5.5
—
ADC122S655
EW
12
2
200 to 500
4.5 to 5.5
ADC122S706 E W
12
2
—
500 to 1000
4.5 to 5.5
ADC141S626
EW
14
1
—
50 to 250
2.7 to 5.5
2
ADC161S626 E W
16
1
—
50 to 250
4.5 to 5.5
—
Product ID
Res
(bits)
Inputs
ADC121S625 E W
12
ADC121S655
EW
ADC121S705 E W
1 Alarm Option
PowerWise® product
18
Pin and
Function
Compatible
E Evaluation
board
W WEBENCH
DNL (LSB)
ENOB
(bits)
typ
Temp
Range
(°C)
Packaging
±0.4
11.8
-40 to 85
MSOP-8
±0.6
±0.4
11.7
-40 to 105
MSOP-8
±0.6
±0.4
11.7
-40 to 105
MSOP-8
—
±1.0
±0.95
11.25
-40 to 105
MSOP-10
—
25
±1.0
±0.95
11.25
-40 to 105
MSOP-10
20
25
±1
±0.95
11.25
-40 to 105
TSSOP-14
4.8
±0.5
±0.5
13.7
-40 to 85
MSOP-10
5.8
±0.8
±0.5/ ±0.8
14.3
-40 to 85
MSOP-10
enabled
A/D Converters
GSPS Ultra-High-Speed
ADC083000 – PowerWise® 8-Bit, 3 GSPS ADC Delivers Unsurpassed Performance without
Heat Sinks
Features
• Adjustable sampling clock phase
• Multiple ADC synchronization capability
• Choice of single or dual data rate output clocking
• Serial interface for extended control (including gain and offset)
• Full-speed test patterns for system testing and debugging
• ADC08B3000 4k byte on-chip FIFO memory
• Reference board available with LMX2531 clock conditioner and
LMH6555 high-speed amplifier, for inputs between DC and 750 MHz
GSPS Family Performance (typical)
• Energy-efficient PowerWise® products
• High 7.2 to 7.5 Effective Number of Bits (ENOB)
• Full power bandwidth beyond 3 GHz (ADC083000)
• Up to 3 GSPS sampling speed
• DNL ±0.20 LSB
• Operating power between 0.8W and 1.9W
(No heat sink required)
• Power-down mode: under 25 mW
Applications
Ideal for use in direct RF down conversion, digital oscilloscopes,
communications transceivers, test instrumentation, and ranging
applications such as LIDAR and RADAR
8-Bit and 10-Bit GSPS A/D Converters
Product ID
Sampling Rate (MSPS)
Power
ENOB (Bits)
SNR (dB)
SFDR (dB)
THD (dBc)
Packaging
ADC081000
1000
1.43
7.5
48
58.5
-57
eLQFP-128
ADC08D1000
1000
1.6
7.4
47.1
55
-55
eLQFP-128
ADC08D1020
1000
1.6
7.4
46.8
58
-58
eLQFP-128
ADC081500
1500
1.2
7.4
47
56
-54.5
eLQFP-128
ADC08D1520
1500
2
7.4
46.8
58
-58
eLQFP-128
ADC083000
3000
1.9
7.2
45.3
57
-57
eLQFP-128
ADC08B3000
3000
1.6
7.2
45.3
55.4
-54.8
eLQFP-128
ADC10D1000
1000/2000
2.77
9.1
57
66
-66
TEPBGA-292
8-Bit MSPS A/D Converters
Product ID
Sampling Rate (MSPS)
Power
ENOB (Bits)
SNR (dB)
SFDR (dB)
THD (dBc)
Packaging
ADC08060
20 to 60
1.3 mW/MSPS
7.5
44.6
64
-57
TSSOP-24
ADC08L060
10 to 60
0.65 mW/MSPS
7.6
48
59.1
-57
TSSOP-24
ADC08100
100
1.3 mW/MSPS
7.5
47
60
-60
TSSOP-24
ADC08200
200
1.05 mW/MSPS
7.4
46
58
-58
TSSOP-24
ADC08B200*
200
2 mW/MSPS
7.4
47
56
-55
TQFP-48
ADC08D500**
500
1.4W
7.5
48
55
-55
LQFP-128
ADC08500
500
0.8W
7.5
47.5
56
-56
LQFP-128
* Buffer
** Dual
PowerWise® product
national.com/industrial
19
A/D Converters
MSPS High-Speed
High-Speed MSPS A/D Converters
Product ID
16-Bit
ADC16V130 E
14-Bit
ADC14155 E
ADC14V155 E
Channels
Speed (MSPS)
Power (mW)
SNR (dB)
SFDR (dB)
Outputs
Packaging
1
130
755
78.5
95.5
LVDS
LLP-64
1
1
155
155
967
951
71.3
71.7
87
86.9
CMOS
Parallel LVDS
LLP-48
LLP-48
ADC14DS080/105 E
2
80/105
800/1000
74.2/73
90
Serial LVDS
LLP-60
ADC14DC080/105
2
80/105
600/800
73/74
90
CMOS
LLP-60
ADC14C080/105 E
1
80/105
300/400
74.2/74
90
CMOS
LLP-32
ADC14L040
E
1
40
235
73
90
CMOS
LQFP-32
ADC14L020
E
1
20
150
74
93
CMOS
LQFP-32
ADC12C170 E
1
170
715
67.2
85.4
CMOS
LLP-48
ADC12V170
E
1
170
781
67.2
85.8
Parallel LVDS
LLP-48
ADC12C105 E
1
105
400
71
90
CMOS
LLP-32
2
80/105
800/1000
71
88
Serial LVDS
LLP-60
2
80/105
600/800
71.5/71
90
CMOS
LLP-60
1
80
300
71.2
90
CMOS
LLP-32
E
12-Bit
ADC12DS080/105
E
ADC12DC080/ 105
E
ADC12C080 E
ADC12DL080
2
80
447
69
82
CMOS
TQFP-64
ADC12L080/ 81 E
1
80
425
66
80
CMOS
LQFP-32
ADC12L066
1
66
357
66
80
CMOS
LQFP-32
E
ADC12QS065
4
65
800
69
83
Serial LVDS
LLP-60
ADC12DL065 E
2
65
360
69
86
CMOS
TQFP-64
ADC12L063
E
1
62
354
66
78
CMOS
LQFP-32
E
8
50
384
69.3
77
Serial LVDS
LLP-68
ADC12DL040 E
2
40
210
69
85
CMOS
TQFP-64
ADC12D040
ADC12EU050
2
40
600
68
80
CMOS
TQFP-64
ADC12040 E
1
40
340
69.5
84
CMOS
LQFP-32
ADC12020
1
20
185
70
86
CMOS
LQFP-32
ADC11DV200 E
2
200
450
62.5
82
CMOS or LVDS
LLP-60
ADC11C170
E
1
170
715
65.1
85.4
CMOS
LLP-48
ADC11C125
E
1
125
608
65.5
88.2
CMOS
LLP-48
ADC11DL066
2
66
686
64
80
CMOS
TQFP-64
ADC11L066
1
66
357
65
78
CMOS
LQFP-32
ADC10DV200 E
2
200
450
59.9
82
CMOS or LVDS
LLP-60
ADC10080 E
1
80
78.6
59.5
79
CMOS
TSSOP-28
ADC10DL065
2
65
370
61
85
CMOS
TQFP-64
ADC10065
1
65
68.4
59.6
80
CMOS
TSSOP-28
ADC10D040
2
40
267
60
72
CMOS
TQFP-48
ADC10040
1
40
55.5
59.6
80
CMOS
TSSOP-28
ADC10D020
2
20
150
59
75
CMOS
TQFP-48
E
11-Bit
!
NEW
10-Bit
PowerWise® product
20
E Evaluation
board
LMK Clock Conditioner Family
Jitter Cleaning + Multiplication + Distribution
LMK01000 Family Features
• 2-input and 8-output clock buffer, divider, and
distributor
• < 30 fs of additive RMS jitter (typ) at 800 MHz
• Up to 1600 MHz clock frequency
Amp
Filter
LMH6552
TXCO
FPGA
SerDes
Loop
Filter
Divider
Backplane
LMK02000 Family Features
• 4- and 8-outputs clock cleaner/generator/distributor
with external voltage-controlled crystal oscillator
(VCXO)
• < 0.2 ps of RMS jitter (typical)
ASIC
Distribution Network
VCO
PLL
ADC
ADC14155
LMK03000C
Divider
Delay
Divider
Delay
Divider
Delay
Divider
Delay
Divider
Delay
Divider
Delay
Divider
Delay
Divider
Delay
SerDes
DS92LV18
PLL + VCO
LMX2531
ASIC
Other
Circuits
DAC
LMK03000 Family Features
• 4- and 8-output clock cleaner/generator/distributor
with integrated low-noise VCO
• < 0.4 ps RMS jitter (typical)
• Lower bill of materials (BOM) cost and footprint using internal VCO
• Three performance grades (premium, standard, value)
FPGA
DAC
DAC14135
Applications:
Ideal for use in 2G/3G basestations, data converter clocking, networking, medical equipment,
instrumentation, military, and aerospace applications
LMK Clock Conditioner Family
Product ID
LVPECL Outputs
LVDS Outputs
VCO
PLL
Output Clock Range (MHz)
VCO Frequency (MHz)
RMS Jitter (typ)
LMK01000ISQ
5
3
—
—
0 to 1600
NA
30 fs (additive)
LMK01010ISQ
0
8
—
—
0 to 1600
NA
30 fs (additive)
LMK01020ISQ
8
0
—
—
0 to 1600
NA
30 fs (additive)
LMK02000ISQ
5
3
—
✔
0 to 860
NA
0.2 ps (+VCXO)
LMK02002ISQ
4
0
—
✔
0 to 860
NA
0.2 ps (+VCXO)
LMK03000CISQ
5
3
✔
✔
0 to 648
1185 to 1296
0.4 ps
LMK03001CISQ
5
3
✔
✔
0 to 785
1470 to 1570
0.4 ps
LMK03002CISQ
4
0
✔
✔
0 to 860
1566 to 1724
0.4 ps
LMK03000ISQ
5
3
✔
✔
0 to 648
1185 to 1296
0.8 ps
LMK03001ISQ
5
3
✔
✔
0 to 785
1470 to 1570
0.8 ps
LMK03002ISQ
4
0
✔
✔
0 to 860
1566 to 1724
0.8 ps
LMK03000DISQ
5
3
✔
✔
0 to 648
1185 to 1296
1.2 ps
LMK03001DISQ
5
3
✔
✔
0 to 785
1470 to 1570
1.2 ps
LMK03033ISQ
4
4
✔
✔
1 to 1080
1840 to 2160
0.8
LMK03033CISQ
4
4
✔
✔
1 to 1080
1840 to 2160
0.4
PowerWise® product
national.com/industrial
21
High-Speed Industrial Ethernet
Advanced 10/100 Ethernet PHYs
PHYTER® 10/100 Family of Ethernet PHYs for Commercial, Industrial, and Extreme Applications
Features
• Industry’s first PHY with support for IEEE 1588 v1 and v2
• 8 ns timestamp resolution
• Internal IEEE 1588 clock
• Industry’s lowest deterministic latency
• Software utility support
• Selectable MII/RMII interface
•
•
•
•
Flexible interrupt capability
Reference clock output (to MAC)
Controlled I/O during power up
Very low power consumption
< 23 mW (energy detect mode)
< 250 mW (normal operation)
• Built-in Self-Test (Packet BIST)
Applications
Ideal for use in industrial automation, test and measurement, telecom, military, and aerospace applications
Precision PHYTER 10/100 IEEE 1588 PHY
Product ID
Single PHYTER Transceiver
DP83640T E
Product ID
Parameter
Industrial
Parameter
Commercial
Industrial
Extended
Extreme
Temp Range (°C)
-40 to 85
Temp Range (°C)
0 to 70
-40 to 85
-40 to 105
-40 to 125
Number of Ports
Single
Number of Ports
Interface
MII/RMII
Interface
IEEE 1588 Precision Time Protocol v1 and v2
<10 nS
Low, Deterministic Delay
Cable Health Diagnostics
•
IEEE 1149.1 (JTAG)
Fiber Support
•
Packaging
LQFP-48
Synchronized GPIOs
12
Package Size (mm)
7 x 7 x 1.4
Synchronized Clock Output
•
IEEE 1149.1 (JTAG)
•
LEDs
3
Packaging
LQFP-48
Package Size (mm)
7 x 7 x 1.4
DP83848C E
DP83848VYB
DP83848YB E
Single
MII/RMII/SNI
•
•
•
•
•
•
•
Mini PHYTER Transceiver
Product ID
DP83848M E
DP83848J E
Parameter
Commercial
Commercial
Industrial
Industrial
Extreme
Temp Range (°C)
0 to 70
0 to 70
-40 to 85
-40 to 85
-40 to 125
Number of Ports
DP83848K E
DP83848T E
DP83848H E
Single
Interface
MII/RMII
Low, Deterministic
Delay
•
•
•
•
•
Smart Power
Up/Down
•
•
•
•
•
LEDs
1
2
2
1
1
Packaging
LLP-40
Package Size
(mm)
E Evaluation
22
DP83848I E
board
6 x 6 x 0.8
DP83849 – Dual PHYTER® 10/100 Ethernet PHY Transceiver for Commercial, Industrial,
and Fiber Applications
Features
• Flexible port switching and chaining
˚ MII port assignment
˚ MDI chaining
• Industry’s lowest deterministic latency
• Enhanced cable diagnostics
• Two fully independent 10/100 ports
˚ Selectable 100Base-Tx/100Base-Fx
˚ MII/RMII/SNI
• Controlled I/O during power up
• Built-in Self-Test (Packet BIST)
• Industrial temperature range
• Fully IEEE 802.3u compliant
• Available in TQFP-80 packaging (12 x 12 mm)
• Low power consumption: < 300 mW per port
Unique Flexible Switching Capability
Applications
Ideal for use in industrial automation, test and measurement,
telecom, military, and aerospace applications
Enhanced Cable Diagnostics
Dual PHYTER Transceiver
Product ID
DP83849C E
DP83849I E
DP83849ID
DP83849IF
Parameter
Commercial
Industrial
Industrial
Industrial
Temp Range (°C)
0 to 70
-40 to 85
-40 to 85
-40 to 85
Number of Ports
Dual
Interface
MII/RMII
Low, Deterministic Delay
•
•
Fiber Support
Flexible Port Switching
Cable Health Diagnostics
IEEE 1149.1 (JTAG)
Packaging
Package Size (mm)
E Evaluation
•
•
•
•
•
•
•
•
•
•
•
•
•
TQFP-80
12 x 12 x 1.0
board
national.com/industrial
23
Serializer/Deserializers
World’s Most Robust Serial Interface Solutions for Industrial Imaging, Display, and
Control Applications
Features
• Wider operating frequency
• Broad portfolio
• Integrated signal conditioning
• FPGA friendly
• Easy to use
• Low EMI, high ESD protection
Sensor/
Imager
Cables
Cables
Processing
Display
Monitor
Serializers and Deserializers
Product ID
MUX Ratio
Function
Clock Min
(MHz)
Clock Max
(MHz)
Max Payload
(Mbps)
Temp
Range °C
Packaging
Eval Kit
Embedded Clock FPGA-Link
!
DS32ELX0421 E
5:1 DDR LVDS
SER +1:2 Fanout
125
312.5
3.125 Gbps
-40 to 85
LLP-48
AES-EXP-HPSER-G (Avnet)
!
DS32ELX0124
1:5 DDR LVDS
DES+Reclocker
125
312.5
3.125 Gbps
-40 to 85
LLP-48
AES-EXP-HPSER-G (Avnet)
!
DS32EL0421 E
5:1 DDR LVDS
SER
125
312.5
3.125 Gbps
-40 to 85
LLP-48
AES-EXP-HPSER-G (Avnet)
!
DS32EL0124
1:5 DDR LVDS
DES
125
312.5
3.125 Gbps
-40 to 85
LLP-48
AES-EXP-HPSER-G (Avnet)
NEW
NEW
NEW
NEW
E
E
Embedded Clock Start/Stop Bit
SCAN921025H E
10:1
SER
20
80
800
-40 to 125
FBGA-49
—
SCAN921226H E
1:10
DES
20
80
800
-40 to 125
FBGA-49
—
DS92LV16
E
16:1
SERDES
25
80
1280
-40 to 85
LQFP-80
BLVDS16EVK
DS92LV18 E
18:1
SERDES
15
66
1188
-40 to 85
LQFP-80
LVDS-18B-EVK
DS90C241 E
24:1
SER
5.0
35
840
-40 to 105
TQFP-48
SERDES24-35USB
DS90C124
E
1:24
DES
5.0
35
840
-40 to 105
TQFP-48
SERDES24-35USB
DS99R103 E
24:1
SER
3.0
40
960
- 40 to 85
LLP-48
SERDES03-40USB
DS99R104
24:1
DES
3.0
40
960
- 40 to 85
LLP-48
SERDES03-40USB
E
Parallel Clock Channel Link
DS90CR217 E
21:3
SER
20
85
595/1785
-10 to 70
TSSOP-48
CLINK3V28BT-85
DS90CR218A E
3:21
DES
12
85
595/1785
-10 to 70
TSSOP-48
CLINK3V28BT-85
DS90CR287
28:4
SER
20
85
595/2380
-10 to 70
TSSOP-56
CLINK3V28BT-85
4:28
DES
20
85
595/2380
-10 to 70
TSSOP-56
CLINK3V28BT-85
E
DS90CR288A E
E Evaluation
24
board
FPGA-Link
DS32EL(X)0421/DS32EL(X)0124 – 3.125 Gbps FPGA-Link Serializers and Deserializers
Features
• Wide serial data rate – 1.25 Gbps to 3.125 Gbps
• Tx de-emphasis, RX equalizer, DC balancing, scrambler
• Supports – CAT5e/6/7, FR-4, coax (50Ω, 75Ω) interconnects
• FPGA-friendly interface – 5-bit DDR LVDS data
• “Remote sense” back-channel enables self-healing link
• 35 pspp (typical) Tx jitter, 0.9 UI (typical) Rx jitter tolerance
• Low power – auto standby and configurable sleep modes
• ELX version features – retimed output and redundant I/O
• Sample FPGA IP for Ser/Des interfacing included
High-Performance SerDes Module Enables Multiple Application Scenarios
Features
FPGA IP package includes:
•
•
•
•
•
•
•
•
•
•
•
•
•
1.25 to 3.125 Gbps serial data rate
125 to 312.5 MHz DDR parallel clock
Typical power consumption (at 3.125 Gbps)
DS32EL0421: 470 mW (typical)
DS32EL0124: 525 mW (typical)
Deserializer jitter tolerance 0.9 UI (typical)
Serializer output jitter 35 pspp (typical)
FPGA-friendly LVDS parallel interface
Sample FPGA firmware to kick-start a design
BERT engine for test pattern generation and validation
5-bit LVDS serialization/deserialization
Link aggregation
Failover/redundancy
AES-EXP-HPSER-G
Point-to-Point
(EL/ELX)
SER
DES
Redundant I/O
(ELX Only)
SER
DES
SER
DES
SER
DES
Daisy Chain
(ELX Only)
Link Aggregation
(EL/ELX)
To order the evaluation package, visit:
national.com/serdes
DES
DES
Data Valid
Data
Valid
SER
DES
Data Valid
Applications
Ideal for use in industrial imaging, medical imaging, communications
infrastructure, commercial displays, test and measurement, printers,
and security infrastructure
national.com/industrial
25
LVDS and CML PHYs
Signal Conditioning—Extend Your Reach
National offers an array of signal conditioning solutions,
covering data rates from DC to 10 Gbps and topologies ranging
from point-to-point to 32 multidrop loads.
CML supports data rates as high as 10 Gbps while generally
maintaining the lowest jitter.
Signal conditioning using equalization and pre-emphasis
(for CML, de-emphasis) enables both technologies to
significantly extend cable and backplane reach by compensating
for media loss.
7
6
5
4
Data Rate (Gbps)
LVDS is the most widespread high-speed signaling technology
and generally requires the least amount of power while
supporting data rates from DC to 3.125 Gbps.
National’s Signal Conditioners
10
B-LVDS and M-LVDS are lower-speed technologies that use
controlled edge rates to improve signal integrity when driving
multiple loads in multi-drop or multi-point configurations.
CML
CML with
Signal Conditioning
3
2
LVDS
LVDS with
Signal Conditioning
1
B-LVDS
M-LVDS
0
0
0
2
5
4
10
0
0
6
15
20
8
25
15
30
10
30
12
35
40
14
45
30
60
16
50
18
55
20 (m)
60
65
45
90
60
120
150
(ft)
(in)
Cable
FR-4
(cm)
Select Signal Conditioning Products
Function
Transmit
Equalization (dB)
Receive
Equalization (dB)
Max Speed/Ch (Mbps)
Packaging
Eval Kit
DS15BA101
Adjustable output buffer
—
—
1500
LLP-8
DriveCable02EVK
DS10BR150
Single LVDS buffer
—
—
1000
LLP-8
DS10BR150EVK
DS50PCI401
Quad PCIe transceiver
0/3/6/9/12
0/9/15/21/26
5000
LLP-54
DS50PCI401EVK
DS91D176
Single M-LVDS transceiver
—
—
200
SOIC-8
DS91D176EVK
DS91M047
Quad M-LVDS driver
—
—
250
SOIC-16
DS91M047EVK
DS92001
Single B-LVDS buffer
—
—
400
SOIC/LLP-8
—
Quad B-LVDS buffer
—
—
155
LLP-44
—
DS15EA101
Adaptive cable equalizer
—
Adaptive
1500
LLP-16
DriveCable02EVK
DS25BR110
Single LVDS equalizer
—
0/3/6/9
3125
LLP-8
DS25BR100EVK
DS38EP100
Power-saver equalizer
—
7
5000
LLP-6
DS38EP100-EVK
DS25MB100-EVK
Product ID
Buffers
N
EW!
DS92LV040A
Equalizers
Multiplexers and Mux-Buffers
DS25MB100
2:1/1:2 mux/buffer
0/-3/-6/-9
0/5
2500
LLP-36
DS15MB200
Dual 2:1/1:2 mux/buffer
0/6
—
1500
LLP-48
SCAN15MB200EVK
DS42MB200
Dual 2:1/1:2 mux/buffer
0/-3/-6/-9
0/5
4250
LLP-48
—
DS25CP102
2 x 2 crosspoint
0/3/6/9
0/3/6/9
3125
LLP-16
DS25CP102EVK
DS10CP154A
4 X 4 crosspoint
—
—
1500
LLP-40
DS10CP154EVK
DS25CP104A
4 X 4 crosspoint
0/3/6/9
0/3/6/9
3125
LLP-40
DS25CP104EVK
DS90LV110A
1:10 LVDS repeater
—
—
400
TSSOP-28
—
DS10BR254
1:4 LVDS repeater
—
—
1500
LLP-40
—
DS25BR204
1:4 LVDS repeater
0/6
0/6
3125
LLP-40
DS25BR204EVK
Crosspoint Switches
1:n Repeaters
PowerWise® product
26
Temperature Sensors
Analog and Digital
Thermal Management Products
Analog
Temperature
Sensors
Digital
Temperature
Sensors
t %JSFDUBOBMPHPVUQVU
t 5IJTDBUFHPSZJODMVEFT
UIFSNBMTXJUDIFT
Remote Diode
Temperature
Sensors
t *OUFHSBUFE"%$DPOWFSUT
UFNQFSBUVSFUPEJHJUBMPVUQVU
t 4VQQPSUTQPQVMBSJOUFSGBDFT
41*4.#VT*$FUD
t .FBTVSFSFNPUFEJPEFT
POQSPDFTTPSTQMVT
JOUFSOBMMPDBMUFNQFSBUVSF
t .PTUJODMVEF
BMBSNGVODUJPOT
t 4.#VT
Hardware
Monitors
t .FBTVSFSFNPUFEJPEFT
BOBMPHTFOTPSTBOE
MPDBMUFNQFSBUVSF
t 1PXFSTVQQMZNPOJUPSJOH
BOEGBODPOUSPM
t "MBSNGVODUJPOT
Analog Temperature Sensors
Product ID
Key Features
Operating
Temp (°C)
Accuracy (°C)
Operating Supply
Voltage Range (V)
Temp Coefficient
(mV/C)
Supply
Current (μA)
LM19/20 E
Low power consumption
-55 to 130
±1.5, ±2.5
2.4 to 5.5
-11.7
4.0
SC-70, TO-92
LM45
No trim or external calibration required
-40 to 125
±3, ±4.0
4 to 10
10
120
SOT23-3
LM50
Negative temperature support
-40 to 150
±3, ±4.0
4.5 to 10
10
130
SOT23-3
LM60
Low voltage support
-40 to 125
±3, ±4.0
2.7 to 10
6.25
82
SOT23-3,
TO-92-3
LM61
Low voltage support
-30 to 100
±3, ±4.0
2.7 to 10
10
82
SOT23-3,
TO-92-3
LM62
Low voltage support
0 to 90
±3, ±4.0
2.7 to 10
15.6
155
SOT23-3
LM94022
Low 1.5V operation
-50 to 150
±2.4
1.5 to 5.5
-5.5/-8.2/10.9/-13.6
5.4
SC70-5
Packaging
Digital Temperature Sensors
Interface
Operating Supply
Voltage (V)
Temp
Resolutions
(°C/LSB)
No. of
Interrupts
No. of
Available
Addresses
Packaging
1.5/-2
Microwire/SPI
2.85 to 5.5
0.125
—
—
MSOP-8, LLP-8
-10 to
85/100
±1.25, 2.1
Microwire/SPI
3.0 to 5.5
0.0625
—
—
SOP-8
High-precision version
of LM74
0 to 70
±1.0
Microwire/SPI
2.4 to 5.5
0.03125
—
—
SOT23-5
LM73
Precision
-10 to 110
±1.0, 1.5
I2C/SMBus2.0
2.7 to 5.5
0.03125
1
6
SOT23-6
LM75A
Industry standard
25 to 100
±2.0
I2C BUS
3.0 to 5.5
0.5
1
8
SOP-8, MSOP-8
LM76
Precision
-10 to 100
±.5, 1.0, 2.5
I2C BUS
3.0 to 5.5
0.0625
2
4
SOP-8
LM77
Separate open-drain
outputs
-10 to 100
±1.5, 2
I2C BUS
3.0 to 5.5
0.25
2
4
SOP-8, MSOP-8
LM92
Centralized thermal
control system precision
-25 to 150
±.33 to 1.5
I2C BUS
2.7 to 5.5
0.0625
2
4
SOP-8
Product
ID
Temp
Range (°C)
Temp
Accuracy
LM70 E
Low precision version
of LM74
-10 to 85
LM74
Industrial
LM95071
Key Features
PowerWise® product
E Evaluation
national.com/industrial
board
27
Temperature Sensors
Switches and Remote Diode
LM26/27 and LM56/57 – Low-Power Temperature Switches with Single or Dual Output
Features
• Combines window comparator output and analog voltage output
V DD = 2.4V to 5.5V
• Alarm output temperature is set at the factory (LM26
and LM27)
TRIP TEST
R SENSE 1
• Low supply current: 20 μA to 230 μA (typ)
LM57
R SENSE 2
• Operating supply voltage range: +2.7V to +5.5V
V TRIP
DAC
• Detection temperature accuracy:
T OVER
GAIN
° LM26 ±3°C (max) (-55°C to 110°C), ±4°C (max) (+120°C)
° LM27 ±3°C (max) (-120°C to 150°C)
+
-
TEMP SENSOR
(Negative Temp
Coefficient)
TRIP
TEST = 1
° LM56BIM ±2°C (max) (-25°C to 85°C)
° LM57B ±1.5°C (max) (-50°C to 150°C)
V DD
TRIP
TEST = 0
T OVER
V TEMP
GND
Temperature Switches
Product ID
Temp Range (°C)
Accuracy (°C)
Supply Range (V)
No. of Interrupt Outputs
Interrupt Temp Setting
Packaging
LM26
-55 to 125
+-3
2.7 to 5.5
1
Factory set
SOT 23-5
LM27
+120 to 150
+-3
2.7 to 5.5
1
Factory set
SOT 23-5
LM56
-40 to 125
E
LM26LV
!
NEW
0 to 150
LM57
-50 to 150
±2, 3, 4
2.7 to 10
2
User specified
SOP-8, MSOP-8
±2.2
1.6 to 5.5
2
Factory set
LLP-6
±1.5, 2.3
2.4 to 5.5
2
User specified
LLP-8
Remote Diode Temperature Sensors
Product ID
Description
Pin-Compatible
LM86/89/99 E
±0.75°C, MSOP-8
Processor
Supported
Measurement
Method
No. of Remote
Channels
TCRIT
Selectable Addresses
P4 and AMD
Traditional
1
1
Factory set
✔
±0.75°C, MSOP-8
65 nm
TruTherm®
1
1
LM95245
±0.75°C, MSOP-8
45 nm
TruTherm
1
1
✔
LM95231
±1.25°C, MSOP-8
90 nm
TruTherm
2
—
Factory set
LM95235
E
LM95241
±1.25°C, MSOP-8
65 nm
TruTherm
2
—
Factory set
LM95213
E
±1.1°C, LLP-14
—
Traditional
0 to 2
3
✔
LM95233
E
± 0.875°C, LLP-14
65 nm
TruTherm
0 to 2
3
✔
LM95214 E
±1.1°C, LLP-14
—
Traditional
0 to 4
3
✔
LM95234
±0.875°C, LLP-14
65 nm
TruTherm
0 to 4
3
✔
LM96194
±2.5°C, LLP-48
65 nm
TruTherm
2 to 4
—
Full PI hardware monitor
LM87
±4°C, TSSOP-24
—
Traditional
2
1
DAC hardware monitor
LM93
±3°C, TSSOP-56
—
Traditional
2
—
Full LUT hardware monitor
LM94
±2.5°C, TSSOP-56
65 nm
TruTherm
2 to 4
—
Full PI and LUT hardware monitor
LM96163 E
±0.75°C, LLP-10
45 nm
TruTherm
1
1
LUT fan control
E
PowerWise® product
28
E Evaluation
board
Power Management
National Provides Highly Reliable Power Management Solutions for Your
Industrial Applications
In-Rush Current Control
Limits in-rush current with both power AND current limiting
to increase system robustness in high-power industrial
applications where reliability is critical.
LDOs and References
National offers a wide portfolio of low-noise and precision LDOs
and references to drive sensitive analog and digital loads for
industrial applications.
High-Voltage DC-DC and Point-of-Load (PoL) Regulators
National offers a wide selection of DC-DC converters and PoL
regulators to convert wide voltage ranges found in industrial
applications down to PoL. Our PowerWise® products enable
energy-efficient systems while WEBENCH® tools allow for
a simple design process which can be optimized for cost,
efficiency, or size.
Power Architecture for Industrial Applications
12V,
24V,
48V
In-Rush
Current
Control
LM5067/69
LM25061/69
national.com/industrial
HighVoltage
DC-DC
LM2267x
LM5115A/25115A
LM5116/25116
LM5574/5/6
LM25574/5/6
LM20242
LM3100/2/3
LM2743/4/5/7/8
LM5118
LM5088/25088
LM5008A/09A
LM5010A
LM5085/25085/A
LM284x
LM315x
LM5000/1/2/5/7
LM25011
5V, 12V
(Intermediate bus, low V rails)
LM20123/4/5/33/4/36/43/4/5/46/54
LM2852/3/4, LM2830/1/2
LM3000
PoL Regulator
3.3V, 2.5V
(logic, memory, i/o)
PoL Regulator
5V, 12V
Peripherals
LDO &
References
LM4030
LM4120/5/8
LM4132
LM4140
LP38500/1/2/3
LP38511/2/3
LP38851/2/3/5/6/8/9
LP5900/51/90
Data
Converter
3.3V, 2.5V
0.6V to 1.8V
(Processor, FPGA)
(Analog - Amplifiers,
Data Converters)
PoL Regulator
LDO &
References
Sequencer
LM3880/81
LP38500/1/2/3
LP38511/2/3
LP38851/2/3/5/6/8/9
LP5900/51/90
LM4030
LM4120/5/8
LM4132
LM4140
29
Integrated FET Switching Regulators
National has several families of switching regulators:
• LM20xxx PowerWise® family of high-efficiency, synchronous
step-down regulators for Point-of-Load (PoL) applications.
• LM500x wide input voltage regulators support input rails up
to 75V with transients up to 100V
• LM3491x and LM248x - Small form factor non-synchronous
bucks in ultra-small packages. Internal compensation allows
for smaller board space by reducing the number of
external components
• SIMPLE SWITCHER® regulators with WEBENCH® online
support for maximum ease of use
° LM310x - Synchronous buck converters regulate outputs
down to 0.6V and require no loop compensation
° LM557x - Emulated Current-Mode buck converters
support up to 75V input and offers high performance and
design flexibility
° LM2267x – Non-synchronous regulators with adjustable
switching frequency and frequency synchronization for
reducing EMI
SIMPLE SWITCHER® Step-Down Family
,-X3ERIESFOR
"OOST&LYBACK3%0)#
4OPOLOGIES
75
65
s3IMPLETOUSE
s-INIMALEXTERNALCOMPONENTS
s7%"%.#(®ONLINEDESIGNTOOL
,-X3ERIES
55
VIN (V)
Integrated FET switching regulators are ideal for applications where:
Total current is low (<6A)
Low Bill of Materials (BOM) count is critical
45
.EW
,-X3ERIES
35
LM2267x
3ERIES
LM310x
3YNCHRONOUS
3ERIES
25
15
.EW
LM315x
3YNCHRONOUS3ERIES
,-X3YNCHRONOUS3ERIES
5
0
0.5 1.0
2.0
3.0
IOUT Max (A)
4.0
5.0
6.0
12.0
National’s SIMPLE SWITCHER families of integrated regulators feature a full
suite of online design tools including the WEBENCH software that allows
designers to select, customize, simulate, and order an evaluation board that
meets the needs of his or her specific application.
SIMPLE SWITCHER Non-Synchronous Buck Regulators
Product ID
Output Current
(mA)
Input Max
Voltage (V)
Input Min
Voltage (V)
Output
Min (V)
Output
Max (V)
Frequency
Range (kHz)
Sync
PWM
Mode
Packaging
LM25574 E,W
500
42
6
1.23
40
50 to 1000
✔
Current
TSSOP-16
LM5574 E,W
500
75
6
1.23
70
50
✔
Current
TSSOP-16
LM25575
1500
42
6
1.23
40
50 to 1000
✔
Current
TSSOP-16EP
LM5575 E,W
1500
75
6
1.23
70
50
✔
Current
TSSOP-16EP
LM25576
3000
42
6
1.23
40
50 to 1000
✔
Current
TSSOP-20EP
E,W
E,W
3000
75
6
1.23
70
50
✔
Current
TSSOP-20EP
LM22671/74 E, W
500
42
4.5
1.285
40
200 to 1000 Adj
✔/–
Voltage
PSOP-8
LM22672/75 E, W
1000
42
4.5
1.285
40
200 to 1000 Adj
✔/–
Voltage
PSOP-8
LM22680
LM5576
E,W
2000
42
4.5
1.285
40
200 to 1000 Adj
✔
Voltage
PSOP-8
LM22670/73/76 E, W
3000
42
4.5
1.285
40
200 to 1000 Adj
✔/–/–
Voltage
TO263-7 Thin,
PSOP-8
LM22677/78/79 E, W
5000
42
4.5
1.285
40
200 to 1000 Adj
✔/–/–
Voltage
TO263-7 Thin
E, W
SIMPLE SWITCHER® Synchronous Regulators
Product ID
Output Current
(mA)
Input Max
Voltage (V)
Input Min
Voltage (V)
Output
Min (V)
Output
Max (V)
Frequency Range (kHz)
and Sync (computed field)
PWM Mode
Packaging
LM3103 E,W
750
42
4.5
0.6
38
1000
COT
eTSSOP-16
LM3100 E,W
1500
36
4.5
0.8
32
1000
COT
eTSSOP-20
LM2852 E,W
2000
5.5
2.85
0.8
3.3
500, 1500
Voltage
eTSSOP-14
LM3102 E,W
2500
42
4.5
0.8
38
1000
COT
eTSSOP-20
LM2853 E,W
3000
5.5
3.0
0.8
3.3
550
Voltage
eTSSOP-14
LM2854 E,W
4000
5.5
2.95
0.8
5.0
500, 1000
Voltage
eTSSOP-16
PowerWise® product
30
E Evaluation
board
W WEBENCH
enabled
LM5000 Series Wide-Input-Range Regulators
!
NEW
Product ID
Switch
Current (mA)
Input Min
Voltage (V)
Input Max
Voltage (V)
Frequency Range
(kHz) and Sync
Output
Min (V)
LM5000/1/2 E, W
500/1000/2000
3.1
40/75
50 to 1500, Sync
LM(2)5005 E, W
2500
7.0
(42) 75
LM5009/9A/8/8A E, W
150/350
9.5, 6.0
95
LM(2)5007
Output Max (V)
Topology
Packaging
1.26
Set by external
feedback network
Boost
LLP-8/16, TSSOP-16,
SOIC-8 Narrow
50 to 1000, Sync
1.23
(40) 70
Buck
TSSOP-20
50 to 600
2.5
85/75
Buck
LLP-8, MSOP-8
500
9.0
42/75
50 to 800
2.5
(37) 73
Buck
MSOP-8
LM25010/5010(A) E, W
1000
6.0
42/75
50 to 1000
2.5
37/70
Buck
LLP-10, TSSOP-14EP
LM25011
2000
6.0
42
2000
2.5
37
Buck
eMSOP-10
E, W
E
LM284X and LM3491X Small Form Factor Non-Synchronous Buck Regulators
Product ID
Current (mA)
Input Max
Voltage (V)
Input Min
Voltage (V)
Output
Min(V)
Output
Max (V)
Frequency
Range
PWM Mode
Package
LM2841
E
300
42
4.5
0.765
37
550 to 1250
Voltage
TSOT-6
LM2842 E
600
42
4.5
0.765
37
550 to 1250
Voltage
TSOT-6
600
40
8.0
2.5
35
1600
Constant on-time
micro SMD-10
1000
33
8.0
2.5
30
Up to 2000
Constant on-time
micro SMD-12
LM34919
E
LM34930 E
LM34917A
1250
33
8.0
2.5
30
2000
Constant on-time
micro SMD-12
LM34910/C E, W
1250
36/50
8.0
2.5
33/45
1000
Constant on-time
LLP-10
LM34914 E
1250
40
8.0
2.5
37
1300
Constant on-time
LLP-10
E
LM20xxx PowerWise® Step-Down Synchronous Buck Regulators
!
NEW
!
NEW
Product ID
Output
Current (A)
Input Max
Voltage (V)
Input Min
Voltage (V)
Output
Min (V)
Output
Max (V)
Frequency Range (kHz)
& Sync (computed field)
LM20242
E, W
2.0
36
4.5
0.8
32
1000
✔
Current-mode control
eTSSOP-20
LM20123
E, W
3.0
5.5
2.95
0.8
5.0
1500
✔
Current-mode control
eTSSOP-16
LM20133 E, W
3.0
5.5
2.95
0.8
5.0
460 to 1.5 MHz, Sync-in
✔
Current-mode control
eTSSOP-16
LM20143
E, W
3.0
5.5
2.95
0.8
5.0
500 to 1500
✔
Current-mode control
eTSSOP-16
LM20323
E, W
3.0
36
4.5
0.8
32
500
✔
Current-mode control
eTSSOP-20
LM20333 E, W
3.0
36
4.5
0.8
32
250 to 1.5 MHz, Sync-in
✔
Current-mode control
eTSSOP-20
LM20343
E, W
3.0
36
4.5
0.8
32
250 to 1 MHz
✔
Current-mode control
eTSSOP-20
LM20124 E, W
4.0
5.5
2.95
0.8
5.0
1000
✔
Current-mode control
eTSSOP-16
LM20134 E, W
4.0
5.5
2.95
0.8
5.0
460 to 1.5 MHz, Sync-in
✔
Current-mode control
eTSSOP-16
LM20144
E, W
4.0
5.5
2.95
0.8
5.0
500 to 1000
✔
Current-mode control
eTSSOP-16
LM20154 E, W
4.0
5.5
2.95
0.8
5.0
1000, Sync-out
✔
Current-mode control
eTSSOP-16
LM20125
E, W
5.0
5.5
2.95
0.8
5.0
500
✔
Current-mode control
eTSSOP-16
LM20145
E, W
5.0
5.5
2.95
0.8
5.0
250 to 750
✔
Current-mode control
eTSSOP-16
LM20136 E, W
6.0
5.5
2.95
0.8
5.0
460 to 1500, Sync-in
✔
Current-mode control
eTSSOP-16
LM20146
6.0
5.5
2.95
0.8
5.0
250 to 750, Adj
✔
Current-mode control
eTSSOP-16
E, W
PowerWise®
product
national.com/industrial
E Evaluation
board
W WEBENCH
On/Off
Pin
PWM Mode
Packaging
enabled
31
Switching Controllers
Switching controllers with external MOSFETs are ideal for
applications where:
LM5088 Uses Spread-Spectrum Technique to Reduce EMI
Currents up to 20A+
Design flexibility is important
National has several families of switching controllers:
• LM(2)5xxx Emulated Current Mode (ECM) family of high-efficiency
step-down controllers support input rails to 100V
• LM5118 3V to 75V buck-boost controller that supports
applications with an input voltage that varies both above and
below the output voltage
• LM3000 dual output synchronous controller converts 12V rails
to Point of Load (PoL) using separate error amp ground pins for
accurate differential sensing of output voltage
• LM315x synchronous SIMPLE SWITCHER® controllers feature
WEBENCH® support for a quick and easy design process
National’s LM5088 Emulated Current Mode (ECM) step-down
controller features:
• Frequency dithering (+ 5%) to improve EMI
• Synchronizable frequency, settable to 750 kHz
• Robust 2A gate drivers for high current capability
• Optional voltage tracking through SS/TRK pin
Controllers: Single and Dual Channel
!
NEW
Product ID
Input Max
Voltage (V)
Input Min
Voltage
(V)
Output
Min (V)
Feedback
Tolerance
Freq Range
(kHz) and
Sync
LM2642
30
4.5
1.238
2
300
E
Error
Flag
✔
Channels
PWM
Mode
2
Packaging
Comments
Current
TSSOP-28
Paralleled single output
LLP-28,
TSSOP-28
Lossless current limiting
LM2647 E
28
5.5
0.6
1.5
200 to 500
✔
2
Voltage
with VIN FF
LM(2)5085/A E
(42) 75
4.5
1.25 / 0.9
2
1000
—
1
COT
MSOP-8,
LLP-8
No loop comp required
LM(2)5088 E, W
(42) 75
4.5
1.2
1.5
50 to 1000,
Sync
—
1
ECM
TSSOP-16EP
Spread-spectrum EMI
reduction
LM(2)5116 E
(42) 100
6
1.2
1.5
50 to 1000
—
1
ECM
TSSOP-20EP Low Iq SHDN
LM2742
16
1
0.6
1.5
50 to 2000
✔
1
Voltage
TSSOP-14
Adj soft start
LM2743 E, W
16
1
0.6
2
50 to 2000
✔
1
Voltage
TSSOP-14
Adj soft start, tracking
LM2744
16
1
0.5
Ext
50 to 2000
✔
1
Voltage
TSSOP-14
Adj external ref, soft start
✔
1
Voltage
TSSOP-14
Pre-bias operation, track
E
LM2745/47/48 E
16
1
0.6
1.5/1/1.5
50 to 1000,
Sync
LM3000 E
18.5
3.3
0.6
1
200 to 1000,
Sync
✔
2
ECM
LLP-32
Clock out, diff remote
sense
LM3150 E, W
42
6
0.6
Adj to 1000
—
1
COT
eTSSOP
No loop comp required
LM3151/52/53 E, W
42/33/18
6
3.3
250/500/700
—
1
COT
eTSSOP
No loop comp required
LM5118 E, W
75
13
1.23
50 to 500,
Sync
✔
1
ECM
TSSOP-20
Buck-boost operation
LM5642 E, W
36
4.5
1.3
200 to 500,
Sync
—
2
Current
TSSOP-28
Paralleled single output
PowerWise® product
32
E Evaluation
board
1.5
W WEBENCH
enabled
Hot Swap/In-Rush Current Controllers
LM(2)506x – Hot Swap/In-Rush Current Limit Controllers with Current and Power Limiting
Features
• Adjustable in-rush current limit and circuit breaker protect system
from over-current/short-circuit events and module insertion/removal
from live power sources
• Adjustable power limit sets maximum power dissipation in the
external pass device
° Ensures MOSFET stays in safe operating area (SOA)
° Reduces MOSFET size
• Adjustable features for design flexibility:
° Input UVLO/OVLO and hysteresis
° Multifunction timer to prevent nuisance trips
° Power GOOD flag output using FB pin (LM25061)
• Internal high-side charge pump and gate driver for external
N-channel MOSFET
• Available in latched fault and automatic restart versions
LM5069 Typical Application Circuit
VSYS
VOUT
VIN
SENSE GATE
OUT
UVLO
LM5069
Power
Good
PGD
OVLO
TIMER
GND
PWR
Power Limiting Protects External Pass Device for Improved System Reliability
To ensure system reliability, any MOSFET must operate within
its Safe Operating Area (SOA) in order to avoid FET failure.
National’s LM(2)506x hot swap controllers provide both current
and power limiting to dynamically adjust the current limit at
large VDS and ensure the MOSFET stays in the SOA
at all conditions – maximizing long-term system reliability
and robustness.
Conventional Hot Swap: Current Limit Only
LM(2)506x: Current Limit AND Power Limit
MOSFET Out of SOA at Large VDS
Optimal Circuit and MOSFET Protection for All VDS
1000
ID , Drain-to-Source Current [A]
ID , Drain-to-Source Current [A]
1000
100
100 μsec
10
1 msec
1
10 msec
Safe Operating Area
(SOA)
0.1
1
10
100
100 μsec
10
1 msec
1
10 msec
Safe Operating Area
(SOA)
0.1
100
1000
1
V DS , Drain-to-Source Voltage [V]
10
100
1000
V DS , Drain-to-Source Voltage [V]
Hot Swap/In-Rush Current Controllers
Adjustable
UVLO
Adjustable
OVLO
Active In-Rush
Current Limit
Active Current
Limiting
Active Power
Limiting
VIN Range (V)
LM5067 E
+9 to -80
VDS
✔
✔
✔
✔
✔
Both
MSOP-10, LLP-10
LM5069
✔
✔
✔
✔
Both
MSOP-10
✔
✔
✔
Both
MSOP-10
✔
✔
✔
Both
MSOP-10
+9 to +80
VDS
✔
LM25061 E
+2.9 to +17
VOUT (Adj)
✔
!
LM25069
+2.9 to +17
VDS
✔
NEW
Packaging
Product ID
!
NEW
Fault LatchOff/Auto
Retry
Power
GOOD
E
E Evaluation
E
✔
board
national.com/industrial
33
Low Dropout (LDO) Linear Regulators
LP38xxx Family of High-Performance CMOS LDOs Power Digital ICs
Performance and Flexibility
LP38xxx High-Performance CMOS LDOs
The LP38xxx family offers performance:
• Ultra-low dropout as low as 115 mV
Performance and Flexibility
Flexibility
LP3850x FlexCap LDO Family
Flexible to Use with Ceramics,
Tantalum, or Aluminum Electrolytic
Capacitors
• Fast-transient response with high AC and DC
accuracy for powering digital cores
• High efficiency of 80% for 1.5V to 1.2V conversions
Fast-Transient Response
LP3851x Fast-Transient Response LDO Family
High AC and DC Accuracy for Digital Cores
The LP38xxx family offers flexibility:
• Flexible to use with ceramics, tantalum, and aluminum
electrolytic capacitors
Ultra-Low Dropout
LP3885x Ultra-Low Dropout for
Highest-Efficiency and Power Throughput
• Supports input voltages from 1.2V, 1.5V, 1.8V, 2.5V, 3.3V,
and 5V rails
1.2V
• Load currents from 800 mA to 3A with the same pin-out
1.8V
Outputs as low as 0.6V
Loads from 800 mA to 3A
2.5V
3.3V
5V
Input Voltage Range
Fast Transient Response LDOs
Product ID
Load Current (A)
V IN Min (V)
V IN Max (V)
VOUT (V)
LP38511 E
0.8
2.25
5.5
1.8, Adj down to 0.8V
Error Flag
✔
Enable
✔
TO263-5
Packaging
LP38512 E
1.5
2.25
5.5
1.8, Adj down to 0.8V
✔
✔
TO263-5, LLP-8
LP38513 E
3.0
2.25
5.5
1.8, Adj down to 0.8V
✔
✔
TO263-5
Low Input Voltage and High-Efficiency LDOs
Product ID
Load Current (A)
VOUT Options (V)
LP38851
0.8
Adj 0.8 to 1.8
✔
✔
✔
115
PSOP-8, TO263-7
LP38852 E
1.5
Adj 0.8 to 1.8
✔
✔
✔
180
PSOP-8, TO263-7
LP38855
1.5
0.8V, 1.2
—
✔
—
180
TO263-5, TO220-5
LP38858
1.5
0.8V, 1.2
—
—
✔
180
TO263-5, TO220-5
E
3.0
Adj 0.8 to 1.8
✔
✔
✔
450
PSOP-8, TO263-7
LP38856 E
3.0
0.8V, 1.2
—
✔
—
450
TO263-5, TO220-5
LP38859
3.0
0.8V, 1.2
—
—
✔
450
TO263-5, TO220-5
LP38853
E
Adj. Output
Enable Pin
Soft-Start Pin
Typical Dropout (mV)
Packaging
FlexCap LDOs
Product ID
Load Current (A)
V IN Min (V)
V IN Max (V)
VOUT (V)
Typical Dropout (mV)
LP38500
1.5
2.7
5.5
Adj down to 0.6
220
—
TO263-5, LLP-8
LP38502 E
1.5
2.7
5.5
Adj down to 0.6
220
✔
TO263-5, LLP-8
LP38501
LP38503
E
Packaging
3.0
2.7
5.5
Adj down to 0.6
450
✔
TO263-5
3.0
2.7
5.5
Adj down to 0.6
450
—
TO263-5
PowerWise® product
E Evaluation
board
To see a more complete list and to learn more about LDOs, visit:
national.com/LDO
34
Enable
Low Dropout (LDO) Linear Regulators
Low Dropout CMOS Linear Regulator Family
VIN
Product ID
Min
Max
VOUT
Maximum
Dropout (mV)
LP38690
2.7
10
ADJ (1.25 - 9) or 1.8, 2.5, 3.3, 5
1600
1000
—
T0252-3, SOT223-5 or LLP-6
LP38691
2.7
10
ADJ (1.25 - 9) or 1.8, 2.5, 3.3, 5
725
500
—
T0252-3 or LLP-6
LP38692 E
2.7
10
ADJ (1.25 - 9) or 1.8, 2.5, 3.3, 5
1600
1000
✔
SOT223-5 or LLP-6
LP38693 E
2.7
10
ADJ (1.25 - 9) or 1.8, 2.5, 3.3, 5
725
500
✔
SOT223-5 or LLP-6
Load (mA)
Enable Pin
Packaging
Low-Input/Low-Output LDOs for Powering Digital ICs
Product ID
Input Max
Voltage (V)
Input Min
Voltage (V)
Output
Current (mA)
Dropout
Voltage (V)
Adjustable
Output
On/Off
Pin
LP3990
6.0
2.0
150
0.06
1.5, 3.8, 1.8, 2.5, 0.8,
1.35, 2.8, 1.2, 3.3
—
LP3991 E
3.6
1.65
300
0.075
1.5, 1.3, 2.8, 1.2
Output Voltage (V)
LP5951 E
5.5
1.8
150
0.2
2.0, 1.5, 3.0, 1.8, 1.3,
2.5, 2.8, 3.3
LP5952 E
4.5
0.9
350
0.088,
0.128
2.0, 1.6, 1.5, 0.7, 1.8,
1.3, 1.0, 1.2, 1.2, 1.4
Quiescent
Current (mA)
PSRR
(dB)
Voltage
Noise (rms)
✔
0.043
55
125
SOT23-5, micro
SMD-4, LLP-6
—
✔
0.05
65
280
micro SMD-4
—
✔
0.029
60
125
SOT23-5, SC70-5
—
✔
0.011
95
100
micro SMD-5
Packaging
Low-Noise LDOs for Low-Power, Space-Constrained Applications
Product ID
Input Max
Voltage
(V)
Input Min
Voltage
(V)
Output
Current
(mA)
Dropout
Voltage
(V)
Output Voltage (V)
LP3995
6
2.5
150
0.06
LP3997
6
2
250
LP3999
6
2.5
LP5900 E
5.5
2.5
LP5990
5.5
2.2
E
PowerWise®
product
PSRR
(dB)
Voltage
Noise
(rms)
✔
0.085
60
25
micro SMD-5;
LLP-6
—
✔
0.055
61
100
MSOP-8
1.5, 2.4, 1.8, 2.5, 2.8, 3.3
—
✔
0.085
60
30
micro SMD-5
1.5, 2.8, 3.3
—
✔
0.025
75
6.5
micro SMD-4
0.8 to 3.6
—
✔
0.03
55
60
micro SMD-4
On/Off
Pin
3, 2.8, 1.9
—
0.14
3.3
150
0.06
150
0.08
200
0.15
E Evaluation
national.com/industrial
Quiescent
Current
(mA)
Adjustable
Output
Packaging
board
35
High-Precision Voltage References
Voltage References
LM4140
10
See All References
LM4030
Series
Shunt
Current
LM4132
Tempco (ppm/°C)
National’s reference portfolio features low temperature
coefficients and precise initial accuracy voltage references.
Both series references and shunt references are available for a
wide variety of industrial applications including instrumentation,
test equipment, data acquisition, basestations, servo systems,
battery chargers, and portable battery-powered equipment.
LM385/386
50
LM4120/21/25
LM431
LM4050/51
LM4128
100
LM4040/41
LMV431
0.05%
0.1%
0.5%
1%
Initial Accuracy (%)
Voltage References
Type
Input
Max
(V)
Input
Min
(V)
LM4120
Series
14
3.3
LM4125
Series
6.0
Product
ID
Initial Accuracy
(+/-) Max
Tempco,
max
(ppm/C)
Output
Current
(mA)
Quiescent
Current
(mA)
Long Term
Stability
(ppm/1000hr)
Voltage
Noise
(μV P-P)
Packaging
3, 3.3, 4.096, 2.048, 5,
1.8, 2.5
0.2, 0.5
50
5.0
0.16
100
20
SOT23-5
3.3
4.096, 2.048, 2.5
0.2, 0.5
50
5.0
0.16
100
20
SOT23-5
0.1, 0.2, 0.5, 1
75, 100
20
0.06
50
170
SOT23-5
Reference (V)
LM4128
Series
5.5
2.2
3, 3.3, 4.096, 2.048,
1.8, 2.5
LM4132
Series
5.5
2.2
4.096, 2.048, 2.5
0.05, 0.1, 0.2, 0.4, 0.5
10-30
20
0.06
50
170
SOT23-5
0.1
3.0
8.0
0.23
60
2.2
SOIC-8
Narrow
0.05, 0.10, 0.15
10, 20, 30
30
0.12
50
100
SOT23-5
LM4140
Series
5.5
1.8
1.25, 4.096, 2.048,
1.024, 2.5
LM4030
Shunt
NA
NA
2.5, 4.096, 5.0
PowerWise® product
36
Designer’s Corner
Machinery downtime during normal
shift operations is very costly due to
lost production, but it is also avoidable.
Preventative maintenance systems
improve the operating efficiency of
machinery used in factories, power plants,
mining, and many other operations.
cases, vibration analysis and ultrasonic
require two different pieces of equipment.
A single, cost-effective instrument that
can monitor the complete frequency range
would be useful. (Figure 1)
The piezoelectric sensor senses the
vibrations and ultrasonic noise generated
by the bearings. The piezoelectric
element is buffered internally by a
MOSFET, which is driven by a constant
current source, amplifier A5, and is
internally AC coupled to the filter.
Amplifiers A1, A2, and A3 implement
a gain of 41.9 dB in conjunction with
a 6-pole lowpass filter. Amplifier A4
has a gain of 1 with a 2-pole filter. The
ADC121S021 Analog-to-Digital Converter
(ADC), which operates at a 200 kHz
sampling rate, digitizes the amplified
and filtered signal. The microprocessor’s
software performs a FFT (Fast Fourier
Transform) on the data to obtain the
frequency and magnitude information.
The pass-band of the circuitry shown
is about 40 kHz. A typical wide band
vibration sensor has a transfer function in
the form of Figure 2.
Diagnostic electronics, monitor the
operating parameters of the machine. For
example, a roller mill may have several
large electric motors and rollers, all of
which have bearings, a hydraulic pump,
and a variety of hydraulic actuators. A
preventative maintenance system for
this type of equipment could include
electronic monitoring equipment
to measure bearing vibration and
temperature, hydraulic fluid pressure and
temperature, and motor temperature.
Vibration analysis, the measurement of
vibrations generated by moving parts in the
frequency range of 50 Hz to 10 kHz, can be
used to monitor the condition of bearings
and other moving components. Ultrasonic
analysis, an extension of vibration analysis,
uses higher frequencies in the 15 kHz
to 40 kHz range. Changes are detected
through spectral analysis of the generated
frequencies in the moving components
due to wear or damage. As parts wear,
the magnitude of vibrations and ultrasonic
noise will increase. An increase of about
12 dB indicates possible impending failure.
The low frequency will start to roll off
around 30 Hz and will be relatively flat
until a resonance frequency occurs at
65 kHz, after which the response falls
rapidly. The peak-to-peak amplitude in
This type of monitoring allows repairs to be
made before the component fails. In many
+5V
100 k⍀
100 k⍀
4.096V
4
B1
3
+24V
1,2
+
1 k⍀
1
6
0.1 µF
7,8
1 µF
3
4 SCLK
6
C1
CS
5 SDATA
To
µP
A5
2
180⍀
100 k⍀
100 k⍀
4.096V
330 pF
+5V
3.57 k⍀ 15 k⍀
+
Piezoelectric
Sensor
470 pF
10 k⍀
330 pF
330 pF
+5V
3.57 k⍀ 15 k⍀
47 k⍀
470 pF
330 pF
47 k⍀
+5V
3.57 k⍀ 15 k⍀
+
A1
470 pF
–
40.2 k⍀
10 k⍀
10 µF
10 µF
6.65 k⍀ 80.6 k⍀
+
A2
470 pF
–
40.2 k⍀
10 k⍀
+
A3
–
40.2 k⍀
10 µF
47 pF
A4
–
Normalized Amplitude
Machinery Monitoring
0 dB
-3 dB
30 Hz
40 kHz
65 kHz
Frequency
Figure 2. Sensor Transfer Function
the flat band is about 32 mVP-P and will be
amplified to 4 VP-P. The gain will be:
4.096 V
= 128
0.032
A gain of 125 will be used to provide
some margin. In relation to the maximum
signal frequency of interest, 40 kHz in this
case, the sampling rate is a concern. To
avoid aliasing frequencies higher then the
Nyquist rate, 1/2 the sampling frequency
must be filtered and reduced in amplitude
to less then 1 LSB of the ADC. In this
example, a 12-bit ADC is being used with
a 4.096V reference, which results in a
resolution of 1 mV as follows:
4 . 096 V
= 0 .001V
4096
To have a realizable filter in sampled data
systems, there must be some separation
between the highest frequency to be
measured and the Nyquist frequency
of the ADC. The result is over sampling
the signal, but the filter can reduce or
eliminate aliasing. Figure 1 uses the
ADC121S021, which is a 12-bit, 200k
Samples Per Second (kSPS) ADC. When
this ADC is converting at 200 kSPS, the
Nyquist frequency will be 100 kHz. The
output signal of the sensor is about 8
mVP-P at 100 kHz and the gain required to
reduce this signal to less then 1 mVP-P is:
⎛ 0.001V ⎞
20 log ⎜
⎟ = −18 dB
⎝ 0.008 V ⎠
A1, A2, A3, A4 = LMP7711
A5 = LM7301
B1 = LM4140CM-4.1
C1 = ADC121S021
Figure 1. Vibration Analysis Signal Chain
national.com/industrial
37
The difference between the 100 kHz and
the 40 kHz signal is:
log(100 kHz) – log(40 kHz) = 5 – 4.60 = 0.40 decade
) = 41.9 dB
The required filter roll off is:
( −41.9 dB + ( −18 dB) ) = −149.8 dB
0.4 decade
decade
Or at least an 8-pole filter:
−149.8 dB
−20 dB
decade
decade
= 7.5 poles
pole
An amplifier can easily implement a
2-pole filter with four amplifiers having
a pass-band gain of five and another
amplifier with a pass-band gain of one.
The filter’s pass-band characteristic is a
result of the amplifier’s gain bandwidth
and the placement of the poles in the
amplifier’s feedback. Each filter stage can
be considered as a non-inverting gain
stage of 5V/V with two poles. The gain
bandwidth of the amplifier required to
keep the amplitude error less then 1 LSB
at 40 kHz can be calculated as follows:
40 kHz ⴛ 5
= 12820 kHz = 12.8 MHz
0.0156
The denominator, 0.0156, in the previous
calculation is the effective bandwidth of an
amplifier for 13-bit accuracy given its -3 dB
point. The LMP7711 precision amplifier, with
17 MHz gain bandwidth and a typical offset
voltage of 20 μV, is a good choice for this
type of application. The output of amplifier
A4 is isolated from the switched capacitor
input of the ADC by the 180Ω resistor and the
470 pF capacitor which adds an additional
pole to the antialias filter. Figure 3 shows the
estimated response of the low-pass filter.
The ADC121S021 is a single-ended
input, 12-bit, 200 kSPS converter with
a Serial Peripheral Interface (SPI).
An LM4140ACM-4.1 precision voltage
reference is the ADC’s reference and
38
Sampling
Frequency
Nyquist
Frequency
1k
10k
filter requirements of the amplifier circuits.
This amplifier, made up of A1 and A2, is the
input stage of an instrumentation amplifier
and provides a differential input and a
differential output with a gain of 100V/V.
The 200 pF capacitors provide a pole at 8
kHz for additional filtering. The amplifiers’
outputs are isolated from the switched
capacitor inputs of the ADC by the 180Ω
resistors and the 470 pF capacitors.
The pressure sensor in this example is a
resistive bridge and the sensor’s output is a
function of the change in resistance and the
voltage driving it. The sensor used in Figure
4 has a sensitivity of 0.2 mV/V of bridge
excitation voltage per PSI of pressure. The
DAC081S101 is used to change the voltage
driving the bridge which has the effect of a
gain control for the pressure measurement
circuit. For example, if the DAC’s output
is programmed to 4V, then the full-scale
pressure is 25.6 PSI. With an output voltage
of 1V, the full-scale pressure is 102 PSI.
Figure 4. Hydraulic Pressure Monitoring System
4.096V
3
6 SYNC
VOUT 1
5 SCLK
C1
4 DOUT
+5V
2
4
B1
3
+5V
3
4
1,2
7,8
6
0.1 µF
1 µF
5
+
1
A2
–
180⍀
2
100 k⍀
0.2 µF
2.048V
VREF
470 pF
1
2
+5V
8
7 SCLK
+IN
2.02 k⍀
AV = 100
6 DOUT
C2
3
5 CS
-IN
4
+5V
100 k⍀
3
4
Pressure Sensor
0.2 mV/Volt/PSI
0.2 µF
470 pF
5
1
A1
2
1M
Figure 3. 9-Pole Low-Pass Filter
This signal chain monitor pressure
fluctuations and conduct spectral analysis
of the pressure fluctuations. As in Figure
1, the frequency response of the sensor
and amplifier must eliminate frequency
components above the Nyquist frequency.
In this case, the frequency response of the
pressure sensor and the hydraulic system
naturally band limit the pressure signals
to about 3 kHz to 4 kHz. This reduces the
120 pF
100k
Frequency (Hz)
Another aspect of machine monitoring
is the measurement and analysis of
hydraulic pressure transients in hydraulic
control systems. For example, hydraulic
hammer occurs when flow control
valves have a fast shutoff and the fluid
momentum causes a banging effect
within the fluid system. Hydraulic hammer
can damage and cause premature failure
of hydraulic components and systems.
These systems are designed to safely
absorb the hydraulic energy. (Figure 4 )
+
V
–
(
20 log 125 V
9-Pole Low-Pass Filter
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
100
Noise (dB)
At 40 kHz, the gain is:
biases the filter amplifiers to half of the
ADC’s input range. The sensor’s output is
an AC signal, and the mid-scale offset level
shifts the signal to the center of the ADC’s
range. The LM4140 is also the reference
voltage for the voltage-controlled current
source using the LM7301, amplifier A5, a
general- purpose 32V amplifier. Internal to
the sensor, a MOSFET transistor buffers
the piezoelectric sensor element. The
current source drives the MOSFET, which
is connected as a common source amplifier
and is AC coupled to the output terminal.
180⍀
A1, A2 = LMP7701
B1 = LM4140ACM-2.0
C1 = DAC081S101
C2 = ADC121S625
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39
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Design Centers
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+1 408 721 5000
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support@nsc.com
Chip Test and Assembly:
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© National Semiconductor Corporation, August 2009. National Semiconductor, , LLP, LMH, MICROWIRE, PHYTER, PowerWise, Signal Path Designer, SIMPLE SWITCHER,
Tru Therm and WEBENCH are registered trademarks of National Semiconductor Corporation. All other brands or product names are trademarks of registered trademarks
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