_______________General Description

The MAX987/MAX988/MAX991/MAX992/MAX995/

MAX996 single/dual/quad micropower comparators

feature low-voltage operation and Rail-to-Rail® inputs

and outputs. Their operating voltage ranges from +2.5V

to +5.5V, making them ideal for both 3V and 5V sys-

tems. These comparators also operate with ±1.25V to

±2.75V dual supplies. They consume only 48µA per

comparator while achieving a 120ns propagation delay.

The common-mode input voltage range extends 250mV

beyond the supply rails. Input bias current is typically

1.0pA, and input offset voltage is typically 0.5mV.

Internal hysteresis ensures clean output switching,

even with slow-moving input signals.

The output stage’s unique design limits supply-current

surges while switching, virtually eliminating the supply

glitches typical of many other comparators. This design

also minimizes overall power consumption under

dynamic conditions. The MAX987/MAX991/MAX995

have a push/pull output stage that sinks as well as

sources current. Large internal output drivers allow rail-

to-rail output swing with loads up to 8mA. The

MAX988/MAX992/MAX996 have an open-drain output

level translators and bipolar to single-ended converters.

The single MAX987/MAX988 are available in tiny 5-pin

SOT23 packages.

____________________________Features

o 120ns Propagation Delay

o 48µA Quiescent Supply Current

o +2.5V to +5.5V Single-Supply Operation

o Common-Mode Input Voltage Range Extends

250mV Beyond the Rails

o Push/Pull Output Stage Sinks and Sources

8mA Current (MAX987/MAX991/MAX995)

(MAX988/MAX992/MAX996)

o Unique Output Stage Reduces Output Switching

Current, Minimizing Overall Power Consumption

o 100µA Supply Current at 1MHz Switching

Frequency

o No Phase Reversal for Overdriven Inputs

o Available in Space-Saving Packages:

5-Pin SOT23 (MAX987/MAX988)

8-Pin

µMAX (MAX991/MAX992)

High-Speed, Micropower, Low-Voltage,

SOT23, Rail-to-Rail I/O Comparators

________________________________________________________________

Maxim Integrated Products

1

IN-

IN+

1

5

OUT

MAX987

MAX988

SOT23

TOP VIEW

2

3

4

_________________Pin Configurations

19-1266; Rev 0b; 7/97

PART

MAX987EUK-T

MAX987ESA

MAX988EUK-T

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

5 SOT23-5

8 SO

5 SOT23-5

______________Ordering Information

Ordering Information continued at end of data sheet.

Typical Application Circuit appears at end of data sheet.

COMPARATORS

PER PACKAGE

OUTPUT

STAGE

MAX987

1

Push/Pull

MAX991

2

Push/Pull

PART

MAX992

2

Open-Drain

MAX995

4

Push/Pull

MAX996

4

Open-Drain

PIN-

PACKAGE

8 SO/

5 SOT23-5

8 SO/µMAX

8 SO/µMAX

14 SO

14 SO

8 SO/

5 SOT23-5

MAX988

1

Open-Drain

Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.

Pin Configurations continued at end of data sheet.

MAX988ESA

-40°C to +85°C

8 SO

SOT

TOP MARK

ABZB

—

ABZC

—

Portable/Battery-

Powered Systems

Mobile Communications

Zero-Crossing Detectors

Window Comparators

Level Translators

Threshold Detectors/

Discriminators

Ground/Supply Sensing

IR Receivers

Digital Line Receivers

_____________________Selector Guide

________________________Applications

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.