_______________General Description

The MAX320/MAX321/MAX322 are precision, dual,

SPST analog switches designed to operate from ±3V to

±8V dual supplies. The MAX320 has two normally open

(NO) switches and the MAX321 has two normally

closed (NC) switches. The MAX322 has one NO and

one NC switch. Low power consumption (1.25mW)

makes these parts ideal for battery-powered equip-

ment. They offer low leakage currents (100pA max) and

max).

The MAX320 series, powered from ±5V supplies, offers

35

between channels, and 4

These switches also offer 5pC max charge injection

and a minimum of 2000V ESD protection per Method

3015.7.

For equivalent devices specified for single-supply oper-

ation, see the MAX323/MAX324/MAX325 data sheet.

For quad versions of these switches, see the

MAX391/MAX392/MAX393 data sheet.

________________________Applications

Battery-Operated Systems

Sample-and-Hold Circuits

Heads-Up Displays

Guidance and Control Systems

Audio and Video Switching

Military Radios

Test Equipment

Communications Systems

±5V DACs and ADCs

PBX, PABX

____________________________Features

o Low On-Resistance, 35

Ω max (16Ω typical)

Ω

Ω

o Guaranteed Charge Injection <5pC

o Bipolar Supply Operation (±3V to ±8V)

o Low Power Consumption, <1.25mW

o Low Leakage Current Over Temperature,

<2.5nA at +85°C

o Guaranteed Break-Before-Make (MAX322 only)

______________Ordering Information

Precision, Dual-Supply, SPST

Analog Switches

________________________________________________________________

Maxim Integrated Products

1

SWITCHES SHOWN FOR LOGIC "0" INPUT

MAX321

LOGIC

SWITCH

0

1

ON

OFF

TOP VIEW

DIP/SO/

µMAX

MAX320

LOGIC

SWITCH

0

1

OFF

ON

MAX322

LOGIC

SWITCH 1

0

1

OFF

ON

SWITCH 2

ON

OFF

8

7

6

5

1

2

3

4

V+

IN1

COM2

NO2

V-

IN2

COM1

NO1

MAX320

DIP/SO/

µMAX

8

7

6

5

1

2

3

4

V+

IN1

COM2

NC2

V-

IN2

COM1

NC1

MAX321

DIP/SO/

µMAX

8

7

6

5

1

2

3

4

V+

IN1

COM2

NC2

V-

IN2

COM1

NO1

MAX322

_____________________Pin Configurations/Functional Diagrams/Truth Tables

Call toll free 1-800-998-8800 for free samples or literature.

19-0350; Rev 0; 12/94

Ordering Information continued at end of data sheet.

* Contact factory for dice specifications.

** Contact factory for availability.

8 CERDIP**

-55°C to +125°C

MAX320MJA

8 CERDIP**

-40°C to +85°C

MAX320EJA

8 SO

-40°C to +85°C

MAX320ESA

8 Plastic DIP

-40°C to +85°C

MAX320EPA

Dice*

0°C to +70°C

MAX320C/D

8 SO

0°C to +70°C

MAX320CSA

8 Plastic DIP

0°C to +70°C

MAX320CPA

PIN-PACKAGE

TEMP. RANGE

PART

8 µMAX

0°C to +70°C

MAX320CUA