TLH11058

February 1995

LM612

Dual-Channel Comparator and Reference

General Description

The dual-channel comparator consists of two individual

comparators having an input voltage range that extends

open-collector output can be driven low by either half of the

LM612 This configuration makes the LM612 ideal for use

as a window comparator The input stages of the compara-

tor have lateral PNP input transistors which maintain low

input currents for large differential input voltages and swings

two-terminal shunt-type band-gap similar to the LM185-12

ence features operation over a shunt current range of 17 mA

to 20 mA low dynamic impedance and broad capacitive

load range

the

LM612 is a space-saving monolithic alternative to a multi-

chip solution offering a high level of integration without sac-

rificing performance

Features

COMPARATORS

Y

Low operating current

300 mA

Y

Wide supply voltage range

4V to 36V

Y

Open-collector outputs

Y

Input common-mode range

Y

Wide differential input voltage

g

36V

REFERENCE

Y

Fixed output voltage

124V

Y

Tight initial tolerance available

g

06% (25 C)

Y

Wide operating current range

17 mAto20mA

Y

Tolerant of load capacitance

Applications

Y

Voltage window comparator

Y

Power supply voltage monitor

Y

Dual-channel fault monitor

Connection Diagram

TLH11058 – 1

Top View

Ordering Information

For information about surface-mount packaging of this device please contact the Analog Product Marketing group at

National Semiconductor Corporation headquarters

Tolerances

Reference

Temperature Range

Package

Package

Number

NSC

Military

Industrial

b

b

g

06% at 25 C

LM612AMN

LM612AIN

8-Pin

N08E

80 ppm C Max

Molded DIP

LM612AMJ883

8-Pin

J08A

(Note 13)

Ceramic DIP

g

20% at 25 C

LM612MN

LM612IN

8-Pin

N08E

150 ppm C Max

Molded DIP

LM612IM

8-Pin Narrow

M08A

Surface Mount

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A