Micropower dual CMOS voltage comparators
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
-
+
-
+
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 input bias current: 1pA typ
■ Extremely low input offset currents: 1pA typ
■ Input common-mode voltage range includes
GND
■ High input impedance: 10
■ Fast response time: 2μs typ for 5mV overdrive
■ Pin-to-pin and functionally compatible with
bipolar LM393
Description
12
Ω typ
TS3702
N
DIP8
(Plastic package)
D
SO8
(Plastic micropackage)
P
TSSOP8
(Thin shrink small outline package)
The TS3702 is a micropower CMOS dual voltage
comparator with extremely low consumption of
9μA 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.
Pin connections
(Top view)
February 2007 Rev 3 1/11
www.st.com
11
Schematic diagram TS3702
1 Schematic diagram
Figure 1. Schematic diagram (for 1/2 TS3702)
V+
CC
T
T
1
T
2
T
9
10
T
17
R
1
Input - Input +
TT
34
T
8
T
5
T
6
T
7
T
11
TT
14 15
T
12
T
13
T
16
V-
CC
TT
18 21
Output
TT
19 20
2/11
TS3702 Absolute maximum ratings and operating conditions
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
V
V
V
I
I
p
T
stg
ESD
+
Supply voltage
Differential input voltage
id
Input voltage
i
Output voltage 18 V
o
Output current 20 mA
o
Forward current in ESD protection diodes on input
F
Power dissipation
d
DIP8
SO8
TSSOP8
Storage temperature range -65 to +150 °C
HBM: human body model
MM: machine model
CDM: charged device model
(3)
(1)
(5)
(7)
(2)
(6)
(8)
(4)
18 V
±18 V
18 V
50 mA
1250
710
625
400 V
50 V
1.5 kV
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. Pd is calculated with T
R
= 100°C/W for DIP8 package
thja
R
= 175°C/W for SO8 package
thja
R
= 200°C/W for TSSOP8 package
thja
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.
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.
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. Operating conditions
= +25°C, Tj = +150°C and
amb
Symbol Parameter Value Unit
Supply voltage
+
V
CC
V
icm
TS3702C, TS3702I
TS3702M
2.7 to 16
4 to 16
Common mode input voltage range 0 to V
+
-1.5 V
CC
Operating free-air temperature range
T
oper
TS3702C
TS3702I
TS3702M
0 to +70
-40 to +125
-55 to +125
V
°C
3/11
Electrical characteristics TS3702
3 Electrical characteristics
Table 3. V
CC
+
= 3V, V
-
= 0V, T
cc
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
≤ T
≤ T
≤ T
≤ T
max
max
max
max
(2)
(2)
(1)
5
6.5
1
300
1
600
0
0
+
V
-1.2
CC
+
-1.5
V
CC
80 dB
V
io
I
io
I
ib
V
icm
CMR
SVR
Input offset voltage
Vic = 1.5V
T
≤ T
min
amb
Input offset current
Vic = 1.5V
≤ T
T
min
amb
Input bias current
Vic = 1.5V
T
≤ T
min
amb
Input common mode voltage range
≤ T
T
min
amb
Common-mode rejection ratio
Vic = V
icm min
Supply voltage rejection ratio
+
V
= 3V to 5V 75 dB
CC
High level output voltage
V
OH
V
= 1V, IOH = -4mA
id
≤ T
T
min
amb
≤ T
max
2
1.8
2.4
Low level output voltage
V
OL
= -1V, IOL = 4mA
V
id
T
≤ T
amb
≤ T
min
max
300 400
.
575
Supply current (each comparator)
I
CC
No load - Outputs low
≤ T
T
min
amb
≤ T
max
.
720
25
Response time low to high
t
PLH
Vic = 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
TTL input
1.5
0.7
Response time high to low
t
PHL
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.
= 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
V
ic
TTL input
2.2
0.15
mV
pA
pA
V
V
mV
μA
μs
μs
4/11
TS3702 Electrical characteristics
Table 4. V
CC
+
= 5V, V
-
= 0V, T
cc
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
Input offset voltage
V
io
I
io
I
ib
V
icm
CMR
SVR
Vic = V
icm min
T
≤ T
min
amb
Input offset current
, V
≤ T
max
+
= 5V to 10V
cc
(2)
Vic = 2.5V
T
≤ T
amb
≤ T
max
(2)
min
Input bias current
Vic = 2.5V
T
≤ T
amb
≤ T
max
min
Input common mode voltage r a n ge
T
≤ T
amb
≤ T
max
min
Common-mode rejection ratio
Vic = V
icm min
Supply voltage rejection ratio
+
V
= +5V to +10V 90 dB
CC
(1)
1.2 5
6.5
1
300
1
600
0
0
+
V
-1.2
CC
+
-1.5
V
CC
82 dB
High level output voltage
V
OH
= 1V, IOH = -4mA
V
id
T
≤ T
amb
≤ T
min
max
4.5
4.3
4.7
Low level output voltage
V
OL
= -1V, IOL = 4mA
V
id
T
≤ T
amb
≤ T
min
max
200 300
375
Supply current (each comparator)
I
CC
No load - Outputs low
≤ T
T
min
amb
≤ T
max
920
25
Response time low to high
t
PLH
= 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
V
ic
Overdrive = 10mV
Overdrive = 20mV
Overdrive = 40mV
TTL input
1.5
1.1
0.9
0.7
0.6
Response time high to low
t
PHL
= 0V, f = 10kHz, CL = 50pF, overdrive = 5mV
V
ic
Overdrive = 10mV
Overdrive = 20mV
Overdrive = 40mV
TTL input
2.2
1.6
1.1
0.75
0.17
mV
pA
pA
V
V
mV
μA
μs
μs
Fall time
t
f
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.
f = 10kHz, CL = 50pF, overdrive 50mV 30
5/11
ns
Package information TS3702
4 Package information
In order to meet environmental requirements, STMicroelectronics offers these devices in
ECOPACK
category of second level interconnect is marke d on the pa ckage and on the inner box label,
in compliance with JEDEC Standard JESD97. The maximum ratings related t o soldering
conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics
trademark. ECOPACK specifications are available at: www.st.com
®
packages. These packages have a Lead-free second level interconnect. The
.
6/11
TS3702 Package information
4.1 DIP8 package mechanical data
Dimensions
Ref.
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
7/11
Package information TS3702
4.2 SO8 package mechanical data
Dimensions
Ref.
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
8/11
TS3702 Package information
4.3 TSSOP8 package mechanical data
Dimensions
Ref.
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
9/11
Ordering information TS3702
5 Ordering information
Table 5. Order codes
Part number
TS3702CN
TS3702CD/CDT SO8 Tube or tape & reel 3702C
TS3702IN
TS3702ID/IDT SO8 Tube or tape & reel 3702I
TS3702IPT TSSOP8 Tape & reel 3702I
TS3702MN
TS3702MD/MDT SO8 Tube or tape & reel 3702M
TS3702MPT TSSOP8 Tape & reel 3702M
Temperature
range
0°C, +70°C
-40°C, +125°C
-55°C, +125°C
6 Revision history
Date Revision Changes
2-Jan-2003 1 First release.
2-May-2005 2
Package Packaging Marking
DIP8 Tube TS3702CN
DIP8 Tube TS3702IN
DIP8 Tube TS3702MN
PPAP references inserted in the datasheet, see Section 5: Ordering
information on page 10.
PPAP references removed.
26-Feb-2007 3
10/11
ESD data added to Table 1 on page 3.
Order codes added to Table 5 on page 10.
TS3702
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