_______________General Description

The MAX381/MAX383/MAX385 are precision, low-volt-

age analog switches. The single-pole single-throw

MAX381 and double-pole single-throw MAX385 dual

switches are normally open. The single-pole double-

throw MAX383 has two normally open and two normally

closed poles. All three parts offer low on-resistance

(less than 35

Ω), guaranteed to match to within 2Ω

between channels and to remain flat over the specified

analog signal range (4

Ω max). They also offer low leak-

age (less than 250pA at +25°C and less than 2.5nA at

+85°C) and fast switching (turn-on time less than 175ns

and turn-off time less than 100ns).

The MAX381/MAX383/MAX385 are fabricated with

Maxim’s low-voltage silicon-gate process for high sys-

tem accuracy. Design improvements guarantee

extremely low charge injection (<5pC) and low power

consumption (<10µW).

These monolithic switches operate with a single posi-

tive supply (+3V to +15V) or with split supplies (±3V to

±8V) while retaining CMOS-logic input compatibility

and fast switching. CMOS inputs provide reduced input

loading.

________________________Applications

Sample-and-Hold Circuits

Military Radios

Test Equipment

Communication Systems

Heads-Up Displays

Battery-Operated Systems

Audio Signal Routing

PBX, PABX

Guidance and Control Systems

____________________________Features

o Single-Supply Operation (+3V to +15V)

Bipolar-Supply Operation (±3V to ±8V)

o Pin-Compatible with DG401/DG403/DG405

o Low On-Resistance, 20

Ω Typical (35Ω Max)

o Guaranteed Matched On-Resistance Between

Channels, <2

Ω

o Guaranteed Flat On-Resistance over Specified

Analog Signal Range, <4

Ω

o Guaranteed Charge Injection, <5pC

o Guaranteed Off-Channel Leakage, <2.5nA at +85°C

o TTL/CMOS-Logic Compatible with 3V, 5V, ±3V,

and ±5V Supplies

o Rail-to-Rail Analog Signal Handling Capability

______________Ordering Information

Precision, Low-Voltage Analog Switches

________________________________________________________________

Maxim Integrated Products

1

MAX383

LOGIC IN

COM

0

1

NC

NO

TOP VIEW

MAX381

LOGIC IN

SWITCH

0

1

OFF

ON

MAX385

LOGIC IN

COM, NO

0

1

OFF

ON

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NO1

IN1

V-

GND

NO3

COM3

N.C.

COM1

MAX385

N.C.

V+

IN2

NO2

COM2

N.C.

COM4

NO4

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NO1

IN1

V-

GND

N.C.

N.C.

N.C.

COM1

MAX381

N.C.

V+

IN2

NO2

COM2

N.C.

N.C.

N.C.

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NO1

IN1

V-

GND

NC3

COM3

N.C.

COM1

MAX383

N.C.

V+

IN2

N02

COM2

N.C.

COM4

NC4

NC

NO

COM

OFF

OFF

COM

PWR OFF

OFF

OFF

OFF

PWR OFF

OFF

PWR OFF

OFF

N.C. = NOT INTERNALLY

CONNECTED

___________________________Pin Configurations/Block Diagrams/Truth Tables

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

19-0300; Rev 0; 9/94

Ordering Information continued on last page.

** Contact factory for package availability.

16 CERDIP**

-55°C to +125°C

MAX381MJE

16 CERDIP**

-40°C to +85°C

MAX381EJE

16 Narrow SO

-40°C to +85°C

MAX381ESE

16 Plastic DIP

-40°C to +85°C

MAX381EPE

Dice*

0°C to +70°C

MAX381C/D

16 Narrow SO

0°C to +70°C

MAX381CSE

16 Plastic DIP

0°C to +70°C

MAX381CPE

PIN-PACKAGE

TEMP. RANGE

PART