General Description

The MAX9140/MAX9141 are single and the MAX9142/

MAX9144 are dual/quad high-speed comparators opti-

mized for systems powered from a 3V or 5V supply. The

MAX9141 features latch enable and device shutdown.

These devices combine high speed, low power, and

rail-to-rail inputs. Propagation delay is 40ns, while sup-

ply current is only 150µA per comparator.

The input common-mode range of the MAX9140/

MAX9141/MAX9142/MAX9144 extends beyond both

power-supply rails. The outputs pull to within 0.3V of

either supply rail without external pullup circuitry, mak-

ing these devices ideal for interface with both CMOS

and TTL logic. All input and output pins can tolerate a

continuous short-circuit fault condition to either rail.

Internal hysteresis ensures clean output switching, even

with slow-moving input signals.

The MAX9140/MAX9141/MAX9142/MAX9144 are high-

er-speed, lower-power, and lower-cost upgrades to

industry-standard comparators MAX941/MAX942/

MAX944.

The MAX9140 are offered in tiny 5-pin SC70 and SOT23

packages. The MAX9141 and MAX9142 are available in

8-pin SOT23 and SO packages, while the MAX9144 is

available in both 14-pin SO and TSSOP packages.

Applications

Line Receivers

Battery-Powered Systems

Threshold Detectors/Discriminators

3V/5V Systems

Zero-Crossing Detectors

Sampling Circuits

Features

♦ Fast, 40ns Propagation Delay (10mV Overdrive)

♦ Low Power

150µA Supply Current Per Comparator (3V)

♦ Optimized for 3V and 5V Applications

♦ Rail-to-Rail Input Voltage Range

♦ Low, 500µV Offset Voltage

♦ Internal Hysteresis for Clean Switching

♦ Outputs Swing 300mV of Power Rails

♦ CMOS/TTL-Compatible Outputs

♦ Output Latch (MAX9141 Only)

♦ Shutdown Function (MAX9141 Only)

♦ Available in SC70 and SOT23 Packages

Ordering Information

40ns, Low-Power, 3V/5V, Rail-to-Rail

Single-Supply Comparators

________________________________________________________________

Maxim Integrated Products

1

1

2

3

4

8

7

6

5

N.C.

OUT

GND

LE

SHDN

IN-

IN+

SOT23/SO

1

2

3

4

8

7

6

5

OUTB

INB-

INB+

GND

INA+

INA-

OUTA

MAX9142

SOT23/SO

14

13

12

11

10

9

8

1

2

3

4

5

6

7

OUTD

IND-

IND+

GND

INA+

INA-

OUTA

INC+

INC-

OUTC

OUTB

INB-

INB+

TSSOP/SO

MAX9141

MAX9144

TOP VIEW

A

B

AD

BC

GND

IN-

IN+

15

OUT

SC70/SOT23

2

34

MAX9140

Pin Configurations

19-2064; Rev 3; 1/10

PART*

PIN-PACKAGE

TOP MARK

MAX9140AAUK+T

5 SOT23

+AFEJ

MAX9140AAXK+T

5 SC70

+ASW

MAX9140AAXK/V+T

5 SC70

+AUG

MAX9140EXK-T

5 SC70

ACC

MAX9140EUK-T

5 SOT23

ADQP

MAX9141EKA-T

8 SOT23

AAFD

MAX9141ESA

8 SO

—

MAX9142EKA-T

8 SOT23

AAFE

MAX9142ESA

8 SO

—

MAX9144EUD

14 TSSOP

—

MAX9144ESD

14 SO

—

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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

operating temperature range. All A-grade devices are specified

over the -40°C to +125°C operating temperature range.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

-

Denotes a package containing lead(Pb).

T = Tape and reel.

/V denotes an automotive qualified part.