MAX990ESA Maxim, MAX990ESA Datasheet

MAX990ESA

Manufacturer Part Number

MAX990ESA

Description

Micropower / Low-Voltage / SOT23 / Rail-to-Rail I/O Comparators

Manufacturer

Maxim

Datasheet

1.MAX990ESA.pdf (12 pages)

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The MAX985/MAX986/MAX989/MAX990/MAX993/

MAX994 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 11µA of sup-

ply current while achieving a 300ns 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 MAX985/MAX989/MAX993

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

MAX986/MAX990/MAX994 have an open-drain output

stage that can be pulled beyond V

above V

level translators and bipolar to single-ended converters.

The single MAX985/MAX986 are available in tiny 5-pin

SOT23 packages.

________________________Applications

19-1229; Rev 1; 7/97

Portable/Battery-

Powered Systems

Mobile Communications

Zero-Crossing Detectors

Window Comparators

Level Translators

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.

_____________________Selector Guide

_______________General Description

MAX985

MAX986

MAX989

MAX990

MAX993

MAX994

PART

. These open-drain versions are ideal for

COMPARATORS

PER PACKAGE

________________________________________________________________ Maxim Integrated Products

Threshold Detectors/

Discriminators

Ground/Supply Sensing

Applications

IR Receivers

Digital Line Receivers

Open-Drain

OUTPUT

Push/Pull

STAGE

Micropower, Low-Voltage, SOT23,

to 6V (max)

PACKAGE

8 SO/

5 SOT23-5

8 SO/

5 SOT23-5

8 SO/µMAX

14 SO

PIN-

Rail-to-Rail I/O Comparators

Ordering Information continued at end of data sheet.

Typical Application Circuit appears at end of data sheet.

____________________________Features

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

_________________Pin Configurations

______________Ordering Information

MAX985EUK-T

MAX985ESA

MAX986EUK-T

MAX986ESA

Pin Configurations continued at end of data sheet.

11µA Quiescent Supply Current

+2.5V to +5.5V Single-Supply Operation

Common-Mode Input Voltage Range Extends

250mV Beyond the Rails

300ns Propagation Delay

Push/Pull Output Stage Sinks and Sources

8mA Current (MAX985/MAX989/MAX993)

Open-Drain Output Voltage Extends Beyond V

(MAX986/MAX990/MAX994)

Unique Output Stage Reduces Output Switching

Current, Minimizing Overall Power Consumption

80µA Supply Current at 1MHz Switching

Frequency

No Phase Reversal for Overdriven Inputs

Available in Space-Saving Packages:

TOP VIEW

PART

SOT23 (MAX985/MAX986)

µMAX (MAX989/MAX990)

-40°C to +85°C

TEMP. RANGE

OUT

IN+

SOT23

MAX985

MAX986

PACKAGE

5 SOT23-5

8 SO

5 SOT23-5

8 SO

PIN-

IN-

TOP MARK

ABZA

ABYZ

SOT

—

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