General Description

The single MAX9015/MAX9016 and dual MAX9017–

MAX9020 nanopower comparators in space-saving

SOT23 packages feature Beyond-the-Rails™ inputs

and are guaranteed to operate down to 1.8V. The A-

grade packages feature an on-board 1.236V ±1% ref-

erence, while the B-grade packages feature a 1.24V

±1.75% reference. An ultra-low supply current of 0.85µA

(MAX9019/MAX9020), 1µA (MAX9015/MAX9016), or

1.2µA (MAX9017/MAX9018) makes the MAX9015–

MAX9020 family of comparators ideal for all 2-cell bat-

tery monitoring/management applications.

The unique design of the MAX9015–MAX9020 output

stage limits supply-current surges while switching,

which virtually eliminates the supply glitches typical of

many other comparators. This design also minimizes

overall power consumption under dynamic conditions.

The MAX9015/MAX9017/MAX9019 have a push-pull

output stage that sinks and sources current. Large

with loads up to 6mA. The MAX9016/MAX9018/MAX9020

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

able for mixed-voltage system design. All devices are

available in the ultra-small 8-pin SOT23 package.

Refer to the MAX9117–MAX9120 data sheet for similar

single comparators with or without reference in a tiny

SC70 package.

Applications

Features

o Ultra-Low Total Supply Current

0.85µA (MAX9019/MAX9020)

1.0µA (MAX9015A/MAX9016A)

1.2µA (MAX9017/MAX9018)

o Guaranteed Operation Down to 1.8V

o Internal 1.236V ±1% Reference (A Grade)

o Input Voltage Range Extends 200mV

Beyond-the-Rails

o CMOS Push-Pull Output with ±6mA Drive

Capability (MAX9015/MAX9017/MAX9019)

o Open-Drain Output Versions Available

(MAX9016/MAX9018/MAX9020)

o Crowbar-Current-Free Switching

o Internal 4mV Hysteresis for Clean Switching

o No Phase Reversal for Overdriven Inputs

o Dual Versions in Space-Saving 8-Pin SOT23

Package

SOT23, Dual, Precision, 1.8V, Nanopower

Comparators With/Without Reference

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

19-2874; Rev 1; 7/03

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.

Ordering Information continued at end of data sheet.

Pin Configurations appear at end of data sheet.

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

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

PART

TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX9015AEKA-T

-40°C to +85°C

8 SOT23-8

AEIW

MAX9016AEKA-T

-40°C to +85°C

8 SOT23-8

AEIX

MAX9017AEKA-T

-40°C to +85°C

8 SOT23-8

AEIQ

MAX9017BEKA-T

-40°C to +85°C

8 SOT23-8

AEIS

Selector Guide

PART

COMPARATOR(S)

INTERNAL REFERENCE (V)

OUTPUT TYPE

SUPPLY CURRENT (µA)

MAX9015A

1

1.236 ±1%

Push-pull

1

MAX9016A

1

1.236 ±1%

Open drain

1

MAX9017A

2

1.236 ±1%

Push-pull

1.2

MAX9017B

2

1.240 ±1.75%

Push-pull

1.2

MAX9018A

2

1.236 ±1%

Open drain

1.2

MAX9018B

2

1.240 ±1.75%

Open drain

1.2

MAX9019

2

—

Push-pull

0.85

MAX9020

2

—

Open drain

0.85

2-Cell Battery

Monitoring/Management

Ultra-Low Power Systems

Mobile Communications

Notebooks and PDAs

Threshold Detectors/

Discriminators

Window Detectors

Sensing at Ground or

Supply Line

Telemetry and Remote

Systems

Medical Instruments