TS3702
Micropower dual CMOS voltage comparators
Features
■
■
■
■
■
■
■
■
■
Push-pull CMOS output (no external pull-up resistor required)
Extremely low supply current: 9 μ A typ / comparator
Wide single supply range: 2.7V to 16V or dual supplies (±1.35V to ±8V)
Extremely low input bias current: 1pA typ
Extremely low input offset currents: 1pA typ
Input common-mode voltage range includes
GND
High input impedance: 10
12 Ω typ
Fast response time: 2 μ s typ for 5mV overdrive
Pin-to-pin and functionally compatible with bipolar LM393
Description
The TS3702 is a micropower CMOS dual voltage comparator with extremely low consumption of
9
μ
A typ / comparator (20 times less than bipolar
LM393). The push-pull CMOS output stage allows power and space saving by eliminating the external pull-up resistor required by usual opencollector output comparators.
Thus response times remain similar to the LM393.
N
DIP8
(Plastic package)
D
SO8
(Plastic micropackage)
P
TSSOP8
(Thin shrink small outline package)
Pin connections
(Top view)
Output 1 1
Inverting Input 1 2
Non-inverting Input 1 3
4
-
+
-
+
8 V
CC
+
7 Output 2
6 Inverting Input 2
5 Non-inverting Input 2
February 2007 Rev 3 1/11 www.st.com
11
Schematic diagram TS3702
Figure 1.
Schematic diagram (for 1/2 TS3702)
V
CC
+
T
1
T
3
T
2
R
1
T
4
T
9
Input -
T
11
T
10
T
8
T
13
T
12
Input +
T
17
T
18
T
19
T
5
T
6
T
7
T
14
T
15
T
16
T
21
T
20
Output
V
CC
-
2/11
TS3702
2
Absolute maximum ratings and operating conditions
Absolute maximum ratings and operating conditions
Table 1.
Symbol
V
CC
+
V id
V i
V o
I o
I
F p d
T stg
ESD
Absolute maximum ratings
Parameter
Supply voltage
(1)
Differential input voltage
(2)
Input voltage
(3)
Output voltage
Output current
Forward current in ESD protection diodes on input
(4)
Power dissipation
(5)
DIP8
SO8
TSSOP8
Storage temperature range
HBM: human body model
(6)
MM: machine model
(7)
CDM: charged device model
(8)
Value
18
±18
18
18
20
50
1250
710
625
-65 to +150
400
50
1.5
Unit mW
1.
All voltage values, except differential voltage, are with respect to network ground terminal.
2.
Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3.
The magnitude of the input and the output voltages must never exceed the magnitude of the positive and negative supply voltages.
4.
Guaranteed by design.
5.
P d
is calculated with T amb
= +25°C, T
= 100°C/W for DIP8 package
R thja j
= +150°C and
R thja
R thja
= 175°C/W for SO8 package
= 200°C/W for TSSOP8 package
6.
Human body model: A 100pF capacitor is charged to the specified voltage, then discharged through a
1.5k
Ω resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
7.
Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5
Ω
). This is done for all couples of connected pin combinations while the other pins are floating.
8.
Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.
Table 2.
Symbol
Operating conditions
Parameter Value Unit
°C
V
V kV
V mA mA
V
V
V
V
CC
+
V icm
T oper
Supply voltage
TS3702C, TS3702I
TS3702M
Common mode input voltage range
Operating free-air temperature range
TS3702C
TS3702I
TS3702M
2.7 to 16
4 to 16
0 to V
CC
+
-1.5
0 to +70
-40 to +125
-55 to +125
V
V
°C
3/11
Electrical characteristics TS3702
Table 3.
Symbol
V io
I io
I ib
V icm
CMR
SVR
V
OH
V
OL
I
CC t
PLH t
PHL
V
CC
+
= 3V, V cc
-
= 0V, T amb
= 25°C (unless otherwise specified)
Parameter Min.
Typ.
Max.
Input offset voltage
(1)
V ic
= 1.5V
T min
≤ T amb
≤ T max
Input offset current
(2)
V ic
= 1.5V
T min
≤ T amb
≤ T max
Input bias current
(2)
V ic
= 1.5V
T min
≤ T amb
≤ T max
Input common mode voltage range
T min
≤ T amb
≤ T max
Common-mode rejection ratio
V ic
= V icm min
Supply voltage rejection ratio
V
CC
+
= 3V to 5V
High level output voltage
V id
= 1V, I
OH
= -4mA
T min
≤ T amb
≤ T max
Low level output voltage
V id
= -1V, I
OL
= 4mA
T min
≤ T amb
≤ T max .
Supply current (each comparator)
No load - Outputs low
T min
≤ T amb
≤ T max
.
Response time low to high
V ic
= 0V, f = 10kHz, C
L
= 50pF, overdrive = 5mV
TTL input
Response time high to low
V ic
= 0V, f = 10kHz, C
L
= 50pF, overdrive = 5mV
TTL input
0
0
2
1.8
1
1
80
75
2.4
300
7
1.5
0.7
2.2
0.15
5
6.5
300
600
V
V
CC
+
CC
+
-1.2
-1.5
400
575
20
25
Unit mV pA pA dB dB mV
μ A
1.
The specified offset voltage is the maximun value required to drive the output up to 2.5V or down to 0.3V.
2.
Maximum values include unavoidable inaccuracies of the industrial tests.
V
V
μ s
μ s
4/11
TS3702 Electrical characteristics
Table 4.
Symbol
V
CC
+
= 5V, V cc
-
= 0V, T amb
= 25°C (unless otherwise specified)
Parameter Min.
Typ.
Max.
Unit
CMR
SVR t t
V
V
V
I
V
I
I io io ib icm
OH
OL
CC
PLH
PHL
Input offset voltage
V ic
= V icm min
, V
T min cc
+
= 5V to 10V
(1)
≤ T amb
≤ T max
Input offset current
(2)
V ic
= 2.5V
T min
≤ T amb
≤ T max
Input bias current
(2)
V ic
= 2.5V
T min
≤ T amb
≤ T max
Input common mode voltage range
T min
≤ T amb
≤ T max
Common-mode rejection ratio
V ic
= V icm min
Supply voltage rejection ratio
V
CC
+
= +5V to +10V
High level output voltage
V id
T
= 1V, I min
OH
= -4mA
≤ T amb
≤ T max
Low level output voltage
V id
= -1V, I
OL
T min
= 4mA
≤ T amb
≤ max
Supply current (each comparator)
No load - Outputs low
T min
≤ T amb
≤ T max
Response time low to high
V ic
= 0V, f = 10kHz, C
L
= 50pF, overdrive = 5mV
Overdrive = 10mV
Overdrive = 20mV
Overdrive = 40mV
TTL input
Response time high to low
V ic
= 0V, f = 10kHz, C
L
Overdrive = 10mV
Overdrive = 20mV
Overdrive = 40mV
TTL input
= 50pF, overdrive = 5mV
0
0
4.5
4.3
1.2
1
1
82
90
4.7
200
9
1.5
1.1
0.9
0.7
0.6
2.2
1.6
1.1
0.75
0.17
V
V
5
6.5
300
600
CC
+
CC
+
-1.2
-1.5
300
375
20
25 mV pA pA
V dB dB
V mV
μ
μ
μ
A s s t f
Fall time f = 10kHz, C
L
= 50pF, overdrive 50mV 30 ns
1.
The specified offset voltage is the maximun value required to drive the output up to 4.5V or down to 0.3V.
2.
Maximum values include unavoidable inaccuracies of the industrial tests.
5/11
Package information TS3702
In order to meet environmental requirements, STMicroelectronics offers these devices in
ECOPACK
®
packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com
.
6/11
TS3702
4.1 DIP8 package mechanical data
Dimensions
Ref.
Min.
Millimeters
Typ.
3.3
Max.
Min.
F
I
L
Z e e3 e4 b b1
D
E
A a1
B
B1
0.7
1.39
0.91
0.38
0.44
0.5
8.8
2.54
7.62
7.62
3.3
1.65
1.04
0.5
9.8
7.1
4.8
1.6
0.028
0.055
0.036
0.015
0.017
Package information
Inches
Typ.
0.130
0.020
0.346
0.100
0.300
0.300
0.130
Max.
0.065
0.041
0.020
0.386
0.280
0.189
0.063
7/11
Package information
4.2
H h
L k ddd
E e
C
D
A
A1
A2
B
SO8 package mechanical data
Dimensions
Ref.
Millimeters
Typ.
Min.
1.35
0.10
1.10
0.33
0.19
4.80
3.80
Max.
1.75
0.25
1.65
0.51
0.25
5.00
4.00
Min.
0.053
0.04
0.043
0.013
0.007
0.189
0.150
5.80
0.25
0.40
1.27
6.20
0.50
0.228
0.010
1.27
8° (max.)
0.016
0.1
TS3702
Inches
Typ.
0.050
0.244
0.020
0.050
0.04
Max.
0.069
0.010
0.065
0.020
0.010
0.197
0.157
8/11
TS3702
4.3
c
D
E
E1
A
A1
A2 b e
K
L
L1
TSSOP8 package mechanical data
Dimensions
Ref.
Min.
Millimeters
Typ.
Min.
0.05
0.80
0.19
0.09
2.90
6.20
4.30
1.00
3.00
6.40
4.40
0.65
Max.
0.20
3.10
6.60
4.50
1.2
0.15
1.05
0.30
0°
0.45
0.60
1
8°
0.75
0.002
0.031
0.007
0.004
0.114
0.244
0.169
0°
0.018
Package information
0.118
0.252
0.173
0.0256
0.024
0.039
Inches
Typ.
0.039
Max.
0.047
0.006
0.041
0.012
0.008
0.122
0.260
0.177
8°
0.030
9/11
Ordering information TS3702
Table 5.
Order codes
Part number
Temperature range
TS3702CN
TS3702CD/CDT
TS3702IN
TS3702ID/IDT
TS3702IPT
TS3702MN
TS3702MD/MDT
TS3702MPT
0°C, +70°C
-40°C, +125°C
-55°C, +125°C
Package
DIP8
SO8
DIP8
SO8
TSSOP8
DIP8
SO8
TSSOP8
Packaging
Tube
Tube or tape & reel
Tube
Tube or tape & reel
Tape & reel
Tube
Tube or tape & reel
Tape & reel
Marking
TS3702CN
3702C
TS3702IN
3702I
3702I
TS3702MN
3702M
3702M
Date
2-Jan-2003
2-May-2005
26-Feb-2007
Revision
1
2
3
Changes
First release.
PPAP references inserted in the datasheet, see Section 5: Ordering information on page 10 .
PPAP references removed.
ESD data added to Table 1 on page 3
.
Order codes added to Table 5 on page 10
.
10/11
TS3702
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