February 2007 Rev 3 1/11
11
TS3702
Micropower dual CMOS voltage comparators
Features
■Push-pull CMOS output (no external pull-up
resistor required)
■Extremely low supply current: 9μA typ /
comparator
■Wide single supply range: 2.7V to 16V or dual
supplies (±1.35V to ±8V)
■Extremely low inp ut bias current: 1pA typ
■Extremely low input offset currents: 1pA typ
■Input common-mode voltage range includes
GND
■High input impedance: 1012Ω typ
■Fast response time: 2μs typ for 5mV overdrive
■Pin-to-pin and fu nctionally compatible with
bipolar LM393
Description
The TS3702 is a micropower CMOS dual voltage
comparator with extremely low consumption of
9μA typ / comparat or (20 times less than bipolar
LM393). The push-pull CMOS output stage allo ws
power and space saving by elim in at ing the
external pull-up resistor required by usual open-
collector output comparators.
Thus response times remain similar to t he LM393.
N
DIP8
(Plastic package)
D
SO8
(Plastic micropackage)
P
TSSOP8
(Thin shrink small outline package)
1
2
3
45
6
7
8
Inverting Input 2
Output 2
Non-inverting Input 2
Output 1
Inverting Input 1
Non-inverting Input 1
CC
+
V -
CC
V
-
+-
+
Pin connections
(Top view)
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Schematic diagram TS3702
2/11
1 Schematic diagram
Figure 1. Schematic diagram (for 1/2 TS3702)
T
1
T
2
1
TT
34
R
T
T
T
T
5
6
7
8
T
T
T
9
11
10
T
12
T
17
T
13
TT
14 15
T
16
TT
19 20
TT
18 21
Input - Input +
Output
CC
V+
CC
V-
TS3702 Absolute maximum ratings and operating conditions
3/11
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VCC+Supply voltage (1)
1. All voltage values, except differential voltage, are with respect to network ground terminal.
18 V
Vid Differential input voltage (2)
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
±18 V
ViInput voltage (3)
3. The magnitude of the input and the output voltages must never exceed the magnitude of the positive and
negative supply voltages.
18 V
VoOutput voltage 18 V
IoOutput current 20 mA
IFForward current in ESD protection diodes on input (4)
4. Guaranteed by design.
50 mA
pd
Power dissipation (5)
DIP8
SO8
TSSOP8
5. Pd is calculated with Tamb = +25°C, Tj = +150°C and
Rthja = 100°C/W for DIP8 package
Rthja = 175°C/W for SO8 package
Rthja = 200°C/W for TSSOP8 package
1250
710
625
mW
Tstg Storage temperature range -65 to +150 °C
ESD
HBM: human body model(6)
6. Human body model: A 100pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
400 V
MM: machine model(7)
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 < 5Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
50 V
CDM: charged device model(8)
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.
1.5 kV
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC+Supply voltage
TS3702C, TS3702I
TS3702M 2.7 to 16
4 to 16 V
Vicm Common mode input voltage range 0 to VCC+ -1.5 V
Toper
Operating free-air temperature range
TS3702C
TS3702I
TS3702M
0 to +70
-40 to +125
-55 to +125
°C
Electrical ch aracteristics TS3702
4/11
3 Electrical characteristics
Table 3. VCC+ = 3V, Vcc- = 0V, Tamb = 25°C (unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage (1)
Vic = 1.5V
Tmin ≤ Tamb ≤ Tmax
1. The specified offset voltage is the maximun value required to drive the output up to 2.5V or down to 0.3V.
5
6.5 mV
Iio
Input offse t current (2)
Vic = 1.5V
Tmin ≤ Tamb ≤ Tmax
2. Maximum values include unavoidable inaccuracies of the industrial tests.
1300 pA
Iib
Input bias current (2)
Vic = 1.5V
Tmin ≤ Tamb ≤ Tmax
1600 pA
Vicm Input common mode voltage range
Tmin ≤ Tamb ≤ Tmax
0
0VCC+-1.2
VCC+ -1.5 V
CMR Common-mode rejection ratio
Vic = Vicm min 80 dB
SVR Supply voltage rejection ratio
VCC+ = 3V to 5V 75 dB
VOH
High level output voltage
Vid = 1V, IOH = -4mA
Tmin ≤ Tamb ≤ Tmax
2
1.8 2.4 V
VOL
Low level output voltage
Vid = -1V, IOL = 4mA
Tmin ≤ Tamb ≤ Tmax.
300 400
575 mV
ICC
Supply current (each comparator)
No load - Outputs low
Tmin ≤ Tamb ≤ Tmax.
720
25 μA
tPLH
Response time low to high
Vic = 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
TTL input 1.5
0.7 μs
tPHL
Response time high to low
Vic = 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
TTL input 2.2
0.15 μs
TS3702 Elect rical characteristics
5/11
Table 4. VCC+ = 5V, Vcc- = 0V, Tamb = 25°C (unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage
Vic = Vicm min, Vcc+ = 5V to 10V (1)
Tmin ≤ Tamb ≤ Tmax
1. The specified offset voltage is the maximun value required to drive the output up to 4.5V or down to 0.3V.
1.2 5
6.5 mV
Iio
Input offset current (2)
Vic = 2.5V
Tmin ≤ Tamb ≤ Tmax
2. Maximum values include unavoidable inaccuracies of the industrial tests.
1300 pA
Iib
Input bias current (2)
Vic = 2.5V
Tmin ≤ Tamb ≤ Tmax
1600 pA
Vicm Input common mode voltage range
Tmin ≤ Tamb ≤ Tmax
0
0VCC+-1.2
VCC+ -1.5 V
CMR Common-mode rejection ratio
Vic = Vicm min 82 dB
SVR Supply voltage rejection ratio
VCC+ = +5V to +10V 90 dB
VOH
High level output voltage
Vid = 1V, IOH = -4mA
Tmin ≤ Tamb ≤ Tmax
4.5
4.3 4.7 V
VOL
Low level output voltage
Vid = -1V, IOL = 4mA
Tmin ≤ Tamb ≤ T
max
200 300
375 mV
ICC
Supply current (each comparator)
No load - Outputs low
Tmin ≤ Tamb ≤ Tmax
920
25 μA
tPLH
Response time low to high
Vic = 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
Overdrive = 10mV
Overdrive = 20mV
Overdrive = 40mV
TTL input
1.5
1.1
0.9
0.7
0.6
μs
tPHL
Response time high to low
Vic = 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
Overdrive = 10mV
Overdrive = 20mV
Overdrive = 40mV
TTL input
2.2
1.6
1.1
0.75
0.17
μs
tfFall time
f = 10kHz, CL = 50pF, overdrive 50mV 30 ns
Package information TS3702
6/11
4 Package information
In order to meet environmental requirements, STMicroelectronics offers these devices in
ECOPACK® pa ckages. These packages have a Lead-fr ee second level interconnect. The
category of second level interconnect is marked on t he 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
tradema rk. ECOPA CK specifications are available at: www.st.com.
TS3702 Package information
7/11
4.1 DIP8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A3.3 0.130
a1 0.7 0.028
B 1.39 1.65 0.055 0.065
B1 0.91 1.04 0.036 0.041
b0.5 0.020
b1 0.38 0.5 0.015 0.020
D 9.8 0.386
E8.8 0.346
e 2.54 0.100
e3 7.62 0.300
e4 7.62 0.300
F 7.1 0.280
I 4.8 0.189
L3.3 0.130
Z 0.44 1.6 0.017 0.063
Package information TS3702
8/11
4.2 SO8 pack age mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.35 1.75 0.053 0.069
A1 0.10 0.25 0.04 0.010
A2 1.10 1.65 0.043 0.065
B 0.33 0.51 0.013 0.020
C 0.19 0.25 0.007 0.010
D 4.80 5.00 0.189 0.197
E 3.80 4.00 0.150 0.157
e 1.27 0.050
H 5.80 6.20 0.228 0.244
h 0.25 0.50 0.010 0.020
L 0.40 1.27 0.016 0.050
k 8° (max.)
ddd 0.1 0.04
TS3702 Package information
9/11
4.3 TSSOP8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.2 0.047
A1 0.05 0.15 0.002 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.008
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.0256
K0°8°0°8°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1 0.039
Ordering information TS3702
10/11
5 Ordering information
6 Revision history
Table 5. Order codes
Part number Temperature
range Package Packaging Marking
TS3702CN 0°C, +70°C DIP8 Tube TS3702CN
TS3702CD/CDT SO8 Tube or tape & reel 3702C
TS3702IN
-40°C, +125°C
DIP8 Tube TS3702IN
TS3702ID/IDT SO8 Tube or tape & reel 3702I
TS3702IPT TSSOP8 Tape & reel 3702I
TS3702MN
-55°C, +125°C
DIP8 Tube TS3702MN
TS3702MD/MDT SO8 Tube or tape & reel 3702M
TS3702MPT TSSOP8 Tape & reel 3702M
Date Revision Changes
2-Jan-2003 1 First release.
2-May-2005 2 PPAP references inserted in the datasheet, see Section 5: Order ing
information on page 10.
26-Feb-2007 3 PPAP refe rences removed.
ESD data added to Table 1 on page 3.
Order codes added to Table 5 on page 10.
TS3702
11/11
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