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February 2007 Rev 3 1/11

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.

DIP8

(Plastic package)

SO8

(Plastic micropackage)

TSSOP8

(Thin shrink small outline package)

Inverting Input 2

Output 2

Non-inverting Input 2

Output 1

Inverting Input 1

Non-inverting Input 1

V -

Pin connections

(Top view)

www.st.com

Schematic diagram TS3702

2/11

1 Schematic diagram

Figure 1. Schematic diagram (for 1/2 TS3702)

14 15

19 20

18 21

Input - Input +

Output

V+

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

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

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.

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

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

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

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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