For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

________________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 systems.

These comparators also operate with ±1.25V to ±2.75V

dual supplies. They consume only 48µA per compara-

tor while achieving a 120ns propagation delay.

Input bias current is typically 1.0pA, and input offset volt-

age 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. The

MAX987/MAX991/MAX995 have a push-pull output

stage that sinks as well as sources current. Large inter-

nal output drivers allow rail-to-rail output swing with

loads up to 8mA. The MAX988/MAX992/MAX996 have

an open-drain output stage that can be pulled beyond

are ideal for level translators and bipolar to single-

ended converters.

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

SC70 packages, while the dual MAX991/MAX992 are

ages.

____________________________Features

♦ 120ns Propagation Delay

♦ 48µA Quiescent Supply Current

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

♦ Common-Mode Input Voltage Range Extends

250mV Beyond the Rails

♦ Push-Pull Output Stage Sinks and Sources

8mA Current (MAX987/MAX991/MAX995)

(MAX988/MAX992/MAX996)

♦ Unique Output Stage Reduces Output Switching

Current, Minimizing Overall Power Consumption

♦ 100µA Supply Current at 1MHz Switching

Frequency

♦ No Phase Reversal for Overdriven Inputs

♦ 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/SC70

TOP VIEW

2

3

4

Pin Configurations

19-1266; Rev 2; 1/07

_______________Ordering Information

Ordering Information continued at end of data sheet.

Typical Application Circuit appears at end of data sheet.

Pin Configurations continued at end of data sheet.

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

PART

PIN-PACKAGE

PKG

CODE

TOP

MARK

MAX987EXK-T

5 SC70-5

X5-1

ABM

MAX987EUK-T

5 SOT23-5

U5-1

ABZB

MAX987ESA

8 SO

S8-2

—

PART

COMPARATORS

PER PACKAGE

OUTPUT

STAGE

MAX987

1

Push-Pull

MAX988

1

Open-Drain

MAX991

2

Push-Pull

MAX992

2

Open-Drain

MAX995

4

Push-Pull

MAX996

4

Open-Drain

µMAX is a registered trademark of Maxim Integrated Products,

Inc.

Note: All devices specified over the -40°C to +85°C operating

temperature range.