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MAX4743EUA

0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches

Maxim Integrated 

19-2116; Rev 2; 12/06

0.8Ω, Low-Voltage, Single-Supply Dual SPST

Analog Switches

General Description

The MAX4741/MAX4742/MAX4743 are low on-resistance,

low-voltage, dual single-pole/single-throw (SPST) analog

switches that operate from a single +1.6V to +3.6V sup-

ply. These devices have fast switching speeds (tON =

24ns, tOFF = 16ns max), handle rail-to-rail analog signals,

and consume less than 1µW of quiescent power. The

MAX4743 has break-before-make switching.

When powered from a +3V supply, the MAX4741/

MAX4742/MAX4743 feature low 0.8Ω (max) on-resis-

tance (RON), with 0.08Ω (max) RON matching and

0.18Ω RON flatness. The digital logic input is 1.8V

CMOS compatible when using a single +3V supply.

The MAX4741 has two normally open (NO) switches,

the MAX4742 has two normally closed (NC) switches,

and the MAX4743 has one NO switch and one NC

switch. The MAX4741 is available in 8-pin µDFN (2mm

x 2mm), 8-pin SOT23, and 8-pin µMAX® packages. The

MAX4742/MAX4743 are available in 8-pin SOT23 and

8-pin µMAX packages.

Applications

Power Routing

Battery Powered Systems

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Hard Drives

TOP VIEW

Features

♦ Low RON:

0.8Ω max (+3V Supply)

2.5Ω max (+1.8V Supply)

♦ 0.18Ω max RON Flatness (+3V Supply)

♦ +1.6V to +3.6V Single-Supply Operation

♦ Available in SOT23 and µMAX Packages

♦ High-Current Handling Capacity (150mA

continuous)

♦ 1.8V CMOS Logic Compatible (+3V Supply)

♦ Fast Switching: tON = 24ns, tOFF = 16ns

Ordering Information

PART

PIN-

PACKAGE

TOP

MARK

PACKAGE

CODE

MAX4741EKA

MAX4741EUA

MAX4741ELA

MAX4742EKA

MAX4742EUA

MAX4743EKA

MAX4743EUA

8 SOT23-8

8 µMAX

8 µDFN

8 SOT23-8

8 µMAX

8 SOT23-8

8 µMAX

AAIY

—

+AAV

AAIZ

—

AAJA

—

K8S-3

U8-1

L822-1

K8S-3

U8-1

K8S-3

U8-1

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

ating temperature range.

Pin Configurations

NO1 1

MAX4741

8 V+

NC1 1

COM1 2

7 IN1

COM1 2

IN2 3

6 COM2

IN2 3

GND 4

5 NO2

GND 4

µMAX

SOT23-8 Pin Configurations continued at end of data sheet.

MAX4742

µMAX

8 V+

NO1 1

7 IN1

COM1 2

6 COM2

IN2 3

5 NC2

GND 4

MAX4743

µMAX

8 V+

7 IN1

6 COM2

5 NC2

µMAX is a registered trademark of Maxim Integrated Products, Inc.

________________________________________________________________ Maxim Integrated Products 1

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.

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