LESHAN RADIO COMPANY, LTD.

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LR393

Dual Differential

Comparators

The LR393 consists of two independent voltage

comparators with an offset voltage specification as low as

2.0mV max. for two comparators which were designed

specifically to operation from a single power supply over a

wide range of voltages. Operate from split power supplies

is also possible,and the low power supply current drain is

independent of the magnitude of the power supply voltage.

These comparators also have a unique characteristic in

that the input common-mode voltage range includes ground,

even though operated from a single power supply voltage.

DESCRIPTION:

DIP-8

SOP-8

FEATURE::

Wide supply voltage range: single supply operation: 2V to 36V, dual supply operation:

1V to

18V

Low input biasing current: 25nA

Low input offset current: 5.0nA; Low input offset voltage: 5.0mV

Input common-mode voltage range includes ground

Differential input voltage range equal to the power supply voltage

Output voltage compatible with TTL,DTL,ECL,MOS and CMOS logic systems.

+ Input

− Input

Output

Q3

R4

Q4

Q5

R2

Q6

Q14

Q16

Q15

Q12

Q11

Q10

Q9

Q8

Q2

Q1

F1

2.0 k

2.1 k

R1

4.6 k

NOTE: Diagram shown is for 1 comparator

PIN CONFIGURATION

(Top View)

GND

Output 2

−

−

+

+

1

2

3

4

8

7

6

5

-Input 1

-Input 2

+Input 1

+Input 2

Output 1

Vcc

BLOCK DIAGRAM

Device

Package

LR393

DIP-8

LR393D

SOP-8

ORDERING INFORMATION