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.

________________General Description

The MAX976/MAX978/MAX998 dual/quad/single, high-

speed, low-power comparators are optimized for

+3V/+5V single-supply applications. They achieve a

20ns propagation delay while consuming only 225µA

supply current per comparator. The MAX998 features a

low-power shutdown mode that places the output in a

high-impedance state and reduces supply current to

1nA.

The MAX976/MAX978/MAX998 inputs have a common-

mode voltage range that extends 200mV below ground.

without external pull-up circuitry, making these devices

ideal for interface with CMOS/TTL logic. All inputs and

outputs can tolerate a continuous short-circuit fault con-

dition to either rail. The comparators’ internal hysteresis

ensures clean output switching, even with slow-moving

input signals.

For space-critical applications, the single MAX998 is

available in a 6-pin SOT23 package, the dual MAX976

is available in an 8-pin µMAX package, and the quad

MAX978 is available in a 16-pin QSOP package.

________________________Applications

Battery-Powered Systems

Threshold Detectors/Discriminators

3V Systems

IR Receivers

Digital Line Receivers

____________________________Features

o Single-Supply Operation Down to 2.7V

o 20ns Propagation Delay

o 225µA Supply Current

o 1nA Shutdown Supply Current

o Rail-to-Rail Outputs

o Ground-Sensing Inputs

o Internal Hysteresis Ensures Clean Switching

o Available in Space-Saving Packages:

SOT23-6 (MAX998)

µMAX (MAX976)

QSOP-16 (MAX978)

Single/Dual/Quad, SOT23, Single-Supply,

High-Speed, Low-Power Comparators

________________________________________________________________

Maxim Integrated Products

1

TOP VIEW

GND

IN-

IN+

16

5

SHDN

OUT

MAX998

SOT23-6

2

34

+ -

__________________Pin Configurations

SHDN

R1

R2

IR RECEIVER

OUT

0.1

µF

MAX998

GND

___________Typical Operating Circuit

19-1299; Rev 1; 1/98

PART

MAX976ESA

MAX976EUA

MAX978ESE

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

TEMP. RANGE PIN-PACKAGE

8 SO

8 µMAX

16 Narrow SO

_______________Ordering Information

Pin Configurations continued at end of data sheet

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

MAX978EEE

MAX998ESA

MAX998EUT-T

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C 16 QSOP

8 SO

6 SOT23-6

SOT

TOP MARK

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