General Description

Maxim’s MAX4655–MAX4658 are medium-voltage

CMOS analog switches with low on-resistance of 10Ω

max, specifically designed to handle large switch cur-

rents. With a switch capability of up to 400mA peak cur-

rent and 300mA continuous current (MAX4655/

MAX4656), and up to 300mA peak current and 150mA

continuous current (MAX4657/MAX4658), these parts

can switch loads as low as 25Ω. They can replace reed

relays with a million times the speed and virtually unlim-

ited number of lifetime cycles. Normal power consump-

tion is only 3mW, whether the switch is on or off. These

parts are TTL/CMOS compatible and will switch any

voltage within its power-supply range.

These are SPST (single-pole/single-throw) switches.

The MAX4655/MAX4657 are normally closed (NC),

while the MAX4656/MAX4658 are normally open (NO).

The difference between the MAX4655/MAX4656 and

the MAX4657/MAX4658 is in the power dissipation of

their packages. Refer to the Absolute Maximum Ratings

and the Electrical Characteristics.

The MAX4655–MAX4658 power-supply range is from

±4.5V to ±20V for dual-supply operation and +9V to

+40V for single-supply operation. These switches can

operate from any combination of supplies, within a 40V

V+ to V- range. They conduct equally well in either direc-

available in 8-pin µMAX, TDFN, and SO packages, with

exposed pad options for high-power applications.

Applications

Relay Replacement

Test Equipment

Communication Systems

xDSL Modems

PBX, PABX Systems

Audio Signal Routing

Audio Systems

PC Multimedia Boards

Redundant/Backup Systems

Features

♦ High Continuous Current Handling

300mA (MAX4655/MAX4656)

150mA (MAX4657/MAX4658)

♦ High Peak Current Handling

400mA (MAX4655/MAX4656)

300mA (MAX4657/MAX4658)

♦ 10Ω max On-Resistance (±15V supplies)

Range

♦ Rail-to-Rail Signal Handling

♦ +12V Single Supply or ±15V Dual Supply

Operation

♦ Pin Compatible with DG417, DG418

Analog Switches

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

TOP VIEW

1

2

4

8

7

6

5

NC

V-

IN

N.C.

V+

GND

N.C.

COM

µMAX/SO/TDFN

SWITCHES SHOWN FOR LOGIC "0" INPUT

LOGIC

SWITCH

0

1

ON

OFF

MAX4655/MAX4657

1

2

4

8

7

6

5

NO

V-

IN

N.C.

V+

GND

N.C.

COM

LOGIC

SWITCH

0

1

OFF

ON

MAX4656/MAX4658

N.C. = NO CONNECT

NC = NORMALLY CLOSED

MAX4655/MAX4657

MAX4656/MAX4658

3

3

µMAX/SO/TDFN

19-1984; Rev 2; 2/04

PART

TEMP RANGE

PIN-PACKAGE

TOP

MARK

MAX4655ETA

-40

°C to +85°C

8 TDFN

AKT

MAX4655EUA

-40

°C to +85°C

8 µMAX-EP*

AAAL

MAX4655ESA

-40

°C to +85°C

8 SO-EP*

—

MAX4656ETA

-40

°C to +85°C

8 TDFN

AKU

MAX4656EUA

-40

°C to +85°C

8 µMAX-EP*

AAAM

MAX4656ESA

-40

°C to +85°C

8 SO-EP*

—

MAX4657EUA

-40

°C to +85°C

8 µMAX

—

MAX4657ESA

-40

°C to +85°C

8 SO

—

MAX4658EUA

-40

°C to +85°C

8 µMAX

—

MAX4658ESA

-40

°C to +85°C

8 SO

—

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

*EP = Exposed paddle.

Pin Configurations/

Functional Diagrams/Truth Tables

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.