max917eukt Maxim Integrated Products, Inc., max917eukt Datasheet

max917eukt

Manufacturer Part Number

max917eukt

Description

Sot23, 1.8v, Nanopower, Beyond-the-rails Comparators With/without Reference

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX917EUKT.pdf (15 pages)

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The MAX917–MAX920 nanopower comparators in

space-saving SOT23 packages feature Beyond-the-

Rails™ inputs and are guaranteed to operate down to

+1.8V. The MAX917/MAX918 feature an on-board

1.245V ±1.5% reference and draw an ultra-low supply

current of only 750nA, while the MAX919/MAX920 (with-

out reference) require just 380nA of supply current.

These features make the MAX917–MAX920 family of

comparators ideal for all 2-cell battery applications,

including monitoring/management.

The unique design of the output stage limits supply-cur-

rent surges while switching, virtually eliminating the

supply glitches typical of many other comparators. This

design also minimizes overall power consumption

under dynamic conditions. The MAX917/MAX919 have

a push-pull output stage that sinks and sources current.

Large internal output drivers allow rail-to-rail output

swing with loads up to 8mA. The MAX918/MAX920

have an open-drain output stage that makes them suit-

able for mixed-voltage system design.

Typical Application Circuit appears at end of data sheet.

19-1512; Rev 1; 1/07

Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.

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.

MAX917

MAX918

MAX919

MAX920

PART

2-Cell Battery Monitoring/Management

Ultra-Low-Power Systems

Mobile Communications

Notebooks and PDAs

Threshold Detectors/Discriminators

Sensing at Ground or Supply Line

Telemetry and Remote Systems

Medical Instruments

SOT23, 1.8V, Nanopower, Beyond-the-Rails

REFERENCE

INTERNAL

Yes

________________________________________________________________ Maxim Integrated Products

General Description

Comparators With/Without Reference

Open-Drain

Push-Pull

OUTPUT

TYPE

Selector Guide

Applications

CURRENT

SUPPLY

(nA)

750

380

♦ Ultra-Low Supply Current

♦ Guaranteed to Operate Down to +1.8V

♦ Internal 1.245V ±1.5% Reference

♦ Input Voltage Range Extends 200mV

♦ CMOS Push-Pull Output with ±8mA Drive

♦ Open-Drain Output Versions Available

♦ Crowbar-Current-Free Switching

♦ Internal Hysteresis for Clean Switching

♦ No Phase Reversal for Overdriven Inputs

♦ Space-Saving SOT23 Package

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

temperature range.

Pin Configurations continue at end of data sheet.

MAX917EUK-T

MAX917ESA

MAX918EUK-T

MAX918ESA

MAX919EUK-T

MAX919ESA

MAX920EUK-T

MAX920ESA

( ) ARE FOR MAX917/MAX918.

(MAX917/MAX918)

Beyond-the-Rails

Capability (MAX917/MAX919)

(MAX918/MAX920)

TOP VIEW

380nA per Comparator (MAX919/MAX920)

750nA per Comparator with Reference

PART

(MAX917/MAX918)

OUT

IN+

PIN-PACKAGE

5 SOT23-5

8 SO

5 SOT23-5

8 SO

5 SOT23-5

8 SO

5 SOT23-5

8 SO

Ordering Information

SOT23-5

MAX917

MAX918

MAX919

MAX920

Pin Configurations

IN- (REF)

MARK

ADIQ

ADIR

ADIS

ADIT

TOP

—

Features

CODE

PKG

U5-1

S8-4

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