Rainbow Electronics MAX9077 User Manual

General description, Applications, Features

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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 MAX9075/MAX9077 single/dual comparators are
optimized for 3V and 5V single-supply applications.
These comparators have a 580ns propagation delay and
consume just 3µA per comparator. The combination of
low-power, single-supply operation down to 2.1V, and
ultra-small footprint makes these devices ideal for all
portable applications.

The MAX9075/MAX9077 have a common-mode input
voltage range of -0.2V to V

CC

- 1.2V. Unlike many com-

parators, there is no differential clamp between the
inputs, allowing the differential input voltage range to
extend Rail-to-Rail

®

. All inputs and outputs tolerate a

continuous short-circuit fault condition to either rail.

The design of the output stage limits supply-current
surges while switching (typical of many other compara-
tors), minimizing power consumption under dynamic
conditions. Large internal push-pull output drivers allow
rail-to-rail output swing with loads up to 2mA, making
these devices ideal for interface with TTL/CMOS logic.

The MAX9075 single comparator is available in 5-pin
SC70 and SOT23 packages, while the MAX9077 dual
comparator is available in 8-pin SOT23, µMAX, and SO
packages.

Applications

Battery-Powered Systems

Threshold Detectors/Discriminators

Keyless Entry Systems

IR Receivers

Digital Line Receivers

Features

580ns Propagation Delay from Only 3µA
2.1V to 5.5V Single-Supply Operation
Ground-Sensing Inputs
Rail-to-Rail Outputs
No Output Phase Inversion for Overdriven Inputs
No Differential Clamp Across Inputs
Available in Ultra-Small Packages

5-Pin SC70 (MAX9075)
8-Pin SOT23 (MAX9077)

MAX9075/MAX9077

Low-Cost, Ultra-Small, 3µA

Single-Supply Comparators

________________________________________________________________ Maxim Integrated Products

1

19-1547; Rev 1; 9/01

Ordering Information

Typical Operating Circuit

V

CC

V

CC

OUT

GND

V

REF

IN-

IN+

V

IN

MAX9075
MAX9077

Pin Configurations

TOP VIEW

GND

IN-

IN+

1

5

V

CC

OUT

MAX9075

SC70-5/SOT23-5

2

3

4

Pin Configurations continued at end of data sheet.

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

PART

TEMP RANGE

PIN-
PACKAGE

TOP

MARK

MAX9075EXK-T -40

°C to +85°C

5 SC70-5

AAC

MAX9075EXK-T -40

°C to +85°C

5 SOT23-5

ADLX

MAX9077EKA-T -40

°C to +85°C

8 SOT23-8

AAAD

MAX9077EUA

-40

°C to +85°C

8 µMAX

MAX9077ESA

-40

°C to +85°C

8 SO

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