LM393 Dual Differential Comparator

DUAL DIFFERENTIAL COMPARATORS

Dual supplies can also be used as long as the

difference between them is 2 to 36 volts. The

LM393 is designed to operate at a temperature

The LM393 dual differential comparator is

made up of two voltage comparators that

operate using the same power supply. THe

supply voltage can range from 2 to 36 volts.

FEATURES

l

Single or dual supplies

l

2 to 36 V Supply

l

Low Input Bias Current

l

Low Input Offset Voltage

l

Low Input Offset Current

l

Low Supply Current Drain

l

Output Compatible with TTL, MOS,

and CMOS

PIN ARRANGEMENT

8 SOP LM393CS

8 DIP LM393CD

ABSOLUTE MAXIMUM RATINGS

Power Supply Voltage

V

CC

+36 or +18

V

Input Differential Voltage Range

V

IDR

36

V

Input Common Mode Voltage Range

V

ICR

-0.3 to +36

V

Output Short Circuit-to-Ground

I

SC

Continuous

mA

Output Sink Current (1)

I

Sink

20

D

570

mW

JA

5.7

Operating Ambient Temperature Range

T

A

0 to 70

Operating Junction Temperature

T

J

125

Storage Temperature Range

T

S

-65 to 150

Item

Symbol

Rating

Unit

Notes: 1. The max. output current may be as high as 20 mA, independent of the magnitude of V

V

2. At output switch point, V

common mode range (0V to V

3. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant,

independent of the output state, therefore, no loading changes will exist on the input lines.

4. Input common mode of either input should not be permitted to go more than 0.3V negative of ground or minus

supply. The upper limit of common mode range is V

5. Response time is specified with a 100mV step and 5.0mV of overdrive. With larger magnitudes of overdrive faster

response times are obtainable.

6. The comparator will exhibit proper output state if one of the inputs becomes greater than V

must remain within the common mode range. The low input state must not be less than –0.3V of ground or minus

supply.

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