General Description

The MAX335 analog switch with serial digital interface

offers eight separately controlled single-pole-single-throw

(SPST) switches. All switches conduct equally in either

direction, and on-resistance (100Ω) is constant over the

analog signal range.

These CMOS switches can operate continuously with

power supplies ranging from ±4.5V to ±20V and handle

rail-to-rail analog signals. Upon power-up, all switches are

off, and the internal serial and parallel shift registers are

reset to zero. The MAX335 is equivalent to two DG211

quad switches but controlled by a serial interface.

The interface is compatible with the Motorola SPI interface

standard. Functioning as a shift register, this serial interface

allows data (at DIN) to be locked in synchronous with the

rising edge of clock (SCLK). The shift register’s output

(DOUT) enables several MAX335s to be daisy chained.

Applications

● Serial Data Acquisition and Process Control

● Avionics

● Signal Routing

● Networking

Features

● 8 Separately Controlled SPST Switches

● SPI-Compatible Serial Interface

● Accepts ±15V Analog Swings

● Multiple Devices Can Be Daisy-Chained

19-0220; Rev 4; 7/17

*Contact factory for dice specifications.

**Contact factory for availability and processing to MIL-STD-883.

PART

TEMP RANGE

PIN-PACKAGE

MAX335CNG

0°C to +70°C

24 Narrow Plastic DIP

MAX335CWG

0°C to +70°C

24 Wide SO

MAX335C/D

0°C to +70°C

Dice*

MAX335ENG

-40°C to +85°C

24 Narrow Plastic DIP

MAX335EUG

-40°C to +85°C

24 TSSOP

MAX335EWG

-40°C to +85°C

24 Wide SO

MAX335MRG

-55°C to +125°C

24 Narrow CERDIP**

Ordering Information

Pin Configuration

MAX335

+

24

1

23

2

22

3

21

4

20

5

19

6

18

7

17

8

16

9

15

10

14

11

13

12

SCLK

V+

DIN

GND

NO0

COM0

NO1

COM1

NO2

COM2

NO3

COM3

CS

TOP VIEW

DIP/SO

VL

DOUT

V-

NO7

COM7

NO6

COM6

NO5

COM5

NO4

COM4

NO0

COM0

SCLK

CS

NO7

COM7

DOUT

PARALLEL REGISTER AND TRANSLATOR

8-BIT SHIFT REGISTER

+5V TRANSLATOR

CLOCK TRANSLATOR

CS TRANSLATOR

LATCH

MAX335

MAX335

Serial Controlled, 8-Channel SPST Switch