datasheet for AMS3100-2.5CM by Advanced Monolithic Systems Inc. (AMS)

datasheet for AMS3100-2.5CM by Advanced Monolithic Systems Inc. (AMS)
Advanced
Monolithic
Systems
AMS3100-2.5
MICROPOWER VOLTAGE REFERENCE
RoHS compliant
FEATURES
APPLICATIONS
• ±12 mV (±0.5%) max. initial tolerance (A grade)
• Operating Current 20µA to 20mA
• Low Voltage Reference 2.50V
• Max. 0.5Ω Dynamic Impedance (A grade)
• Low Temperature Coefficient
• SOT-23 Package Available
• Low cost
• Battery Powered Systems
• Instrumentation
• A/D, D/A Converters
• Temperature measurement
• Current sources
• Notebook/Personal Computer
• Monitors/ VCR/ TV
• Pagers
GENERAL DESCRIPTION
The AMS3100-2.5 are two-terminal micropower band-gap voltage reference that feature a very low dynamic impedance and
good temperature coefficient, operating over a 20µA to 20mA current range. AMS3100-2.5 is trimmed at wafer test level to
optimize the temperature coefficient and tight output voltage tolerance. The advanced process technology used, makes the
AMS3100-2.5 exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide
dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain,
makes these reference diodes useful for micropower circuitry. These voltage references can be used to make portable meters,
regulators or general purpose analog circuitry with battery life approaching shelf life. Further more, the wide operating current
allows it to replace older references with a tight tolerance part. Pin to pin compatible with other standard industry references,
the AMS3100-2.5 offers the advantage of long term stability at low cost.
The AMS3100-2.5 is operating over a -40°C to 85°C temperature range and is available in the space saving SOT-23 package.
ORDERING INFORMATION:
TOL.
PACKAGE TYPE
SOT-23
±12mV AMS3100-2.5AM
±25mV AMS3100-2.5BM
±50mV AMS3100-2.5CM
OPERATING
TEMPERATURE RANGE
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
PIN CONNECTIONS
3L SOT-23
(M)
3 *
1
+
2
-
*This pin must be left floating or
connected to pin 2
Top View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3100-2.5
ABSOLUTE MAXIMUM RATINGS
Reverse Current
Forward Current
Operating Temperature Range
Storage temperature
30mA
10mA
-40°C to 85°C
-55°C to +150°C
Lead Temperature ( 25 Sec)
265°C
Thermal Resistance (θJA)
410°C/W
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IR = 100 µA, and TA = +25°C unless otherwise specified.
Parameter
Reverse Breakdown
Voltage (Note 3)
Reverse Dynamic
Impedance (Note 3)
Reverse Breakdown
Voltage Change with
current (Note 3)
Conditions
Min
2.488
2.500
2.512
IR - 100 µA, f =20Hz
0.2
0.60
10µA ≤IR ≤1mA
1mA ≤IR ≤20mA
1.0
10
(Note 4)
Min
AMS3100B-2.5
Typ
Max
2.475
2.500
AMS3100C-2.5
Min
Typ
Max
2.525
2.450
2.500
2.550
Units
V
IR - 100 µA
12
Min. Operating
Current (Note 3)
Wide Band Noise
AMS3100A-2.5
Typ
Max
IR - 100 µA,
10Hz ≤ f ≤ 10kHz
Temperature Coeff.
1
1.0
10
20
25
13
Ω
1
20
30
13
120
120
120
25
50
100
20
20
20
2.0
20
mV
20
30
µA
µA
µV
150
ppm/°C
(Note 5)
Long Term Stability
(Note 4)
TA=25°C±.1°C
T = 1000 Hr
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the
device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical
Characteristics. The guaranteed specifications apply only for the test conditions listed.
Note 2: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C.
Note 3: Guaranteed and 100% production tested
Note 4:. Guaranteed but not 100% production tested. These limits are not used to calculate average outgoing quality levels.
Note 5: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating
TMAX and TMIN, divided by TMAX - TMIN. The measured temperatures are -40°C, 25°C and 85°C.
TYPICAL APPLICATIONS
Wide Input
Range Reference
Micropower Reference
from 9V Battery
9V
VIN = 3.7V TO 30V
200k
LM334
2.5V
3.3k
AMS3100-2.5
OUT
2.5V
AMS3100-2.5
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
ppm
AMS3100-2.5
TYPICAL APPLICATIONS (Continued)
0°C - 100°C Thermometer
0°C - 100°C Thermometer
1k
150
0-50µA M
0-100µA M
R1
8k
IOUT
R2
1k
V+
R
LM334
R2
1k
V+
3V
R
LM334
AMS3100-2.5
V-
R1
4k
IOUT
AMS3100-2.5
V-
R3
100
3V
R3
50
R4
100
R4
220
Calibration
Calibration
1. Short AMS3100-2.5, adjust R3 for IOUT = temp at 1µA/°K
2. Remove short, adjust R2 for correct reading in °C
1. Short AMS3100-2.5, adjust R3 for IOUT = temp at 1.8µA/°K
2. Remove short, adjust R2 for correct reading in °F
Micropower* 5V Regulator
Micropower* 10V Reference
IQ
VIN = 15V
47k
R
LM334
IQ
VIN ≥ 5.2V
V+
500k
2
2N2905
V-
2.2k
3
6
LM4250C
+
7
3
VO = 5V
IL ≤ 100mA
6
LM4250C
2
7
+
8 1N457
4
150pF
1N457
10V
8
4
22M
150pF
1.5M
100k
+
4.7µF
TANTALUM
500k
AMS3100-2.5
10M
2k
100k
AMS3100-2.5
*IQ ≅ 20µA standby current
*IQ ≅ 40µA
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3100-2.5
TYPICAL APPLICATIONS (Continued)
Micropower Thermocouple Cold Junction Compensator
V+
18k
LM334
1M
1%
2k
1%
R
Adjustment Procedure
V3V +
LITHIUM
AMS3100-2.5
TC ADJ
500
ZERO
ADJ 100k
R2
1. Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature
multiplied by the thermocouple Seebeck coefficient.
2. Adjust ZERO ADJ pot until voltage across R2 equals the thermocouple
Seebeck coefficient multiplied by 273.2.
R1
Thermocouple
Type
+
THERMOCOUPLE
+
R1
(Ω)
R2
Voltage
Voltage
(Ω) Across R1
Across R2
@ 25°C (mV)
(mV)
52.3
42.8
40.8
6.4
523
432
412
63.4
1.24k
1k
953Ω
150Ω
J
T
K
S
METER
-
Seebeck
Coefficient
(mV/ °C)
COLD JUNCTION
ISO THERMAL
WITH LM334
15.60
12.77
12.17
1.908
14.32
11.78
11.17
1.766
Typical supply current 50µA
Precision 1µA to 1mA Current Sources
AMS3100-2.5
30V
AMS3100-2.5
C1
150pF
R1
68k
R1
68k
2
-
2
-
7
6
3
4
+
7
6
LM312
LM312
3
C1
150pF
+
4
IOUT*
IOUT*
R2
1.5V TO 27V
R2
-1.5V TO -27V
-30V
*IOUT =2.5V/R2
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3100-2.5
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics
8
TA =25° C
4
TA =-40° C
0
10
TA =85° C
TA =-40° C
1
TA =25° C
Reverse Dynamic Impedance
0.5 1.0
1.5 2.0
2.5
REVERSE VOLTAGE (V)
0.01
TA =-40° C
1
TA =25° C
0.1
100
Reverse Dynamic Impedance
2.510
2.500
2.490
2.480
2.470
2.460
2.450
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (° C)
10
1
10
100
AMS3100-2.5
40
SHARP CUTOFF
FILTER
OUTPUT
VOLTAGE SWING (V)
OUTPUT
1000
800
600
400
200
0
1k
10k
100k
CUTOFF FREQUENCY (Hz)
Advanced Monolithic Systems, Inc.
1M
IR= 100µA
NOISE (nV/√Hz)
100µA
10k
100k
1k
FREQUENCY (Hz)
Response Time
1200
60
0
100
100
3.0
SINGLE POLE LOW PASS
100
20
IR= 100µA
1k
0.1
1400
IR= 100µA
TA =25° C
Noise Voltage
Filtered Output Noise
80
IR= 100µA
2.520
120
0.1
1
10
100
FORWARD CURRENT (mA)
10k
DYNAMIC IMPEDANCE (Ω)
REFERENCE VOLTAGE (V)
TA =85° C
0.1
1
10
REVERSE CURRENT (mA)
TA =25° C
0.4
Temperature Drift
100
0.01
0.8
3.0
2.530
10
TA =-40° C
0
0
0.1
1
10
100
REVERSE CURRENT (mA)
1.2
TA =85° C
0.1
-4
1000
DYNAMIC IMPEDANCE (Ω)
1.6
FORWARD VOLTAGE (V)
TA =85° C
12
0.01
INTEGRATED NOISE (µV)
Forward Characteristics
100
REVERSE CURRENT (µA)
OUTPUT VOLTAGE CHANGE (mV)
Reverse Characteristics
16
2.0
INPUT
100k
OUTPUT
1.0
0
~
~
~
~
10
INPUT
0
10
100
1k
10k
FREQUENCY (Hz)
www.advanced-monolithic.com
100k
0
Phone (925) 443-0722
200
400
TIME (µs)
600
Fax (925) 443-0723
AMS3100-2.5
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD SOT-23 PLASTIC PACKAGE (M)
0.110-0.120
(2.794-3.048)
0.015-0.017
(0.381-0.432)
0.083-0.098
(2.108-2.489)
0.047-0.055
(1.194-1.397)
0.035-0.040
(0.889-1.016)
0.018-0.024
(0.457-0.610)
10°
NOM
0.035-0.041
(0.089-1.041)
0.0034-0.0050
(0.086-0.127)
0.0005-0.0040
(0.013-0.102)
0.070-0.080
(1.778-2.032)
10°
NOM
0.018-0.024
(0.457-0.610)
(SOT-23 ) AMS DRW# 051991
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
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