General Description

The MAX4511/MAX4512/MAX4513 are quad, single-

pole/single-throw (SPST), fault-protected analog switch-

es. They are pin-compatible with the industry-standard

nonprotected DG201/DG202/DG213. These new switch-

handling capability. The normally open (NO_) and

normally closed (NC_) terminals are protected from

overvoltage faults up to 36V during power-up or

power-down. During a fault condition, the NO_ or NC_

terminal becomes an open circuit and only nanoamperes

of leakage current flow from the source, but the switch

output (COM_) furnishes up to 10mA of the appropriate

polarity supply voltage to the load. This ensures unam-

biguous rail-to-rail outputs when a fault begins and ends.

On-resistance is 175

Ω max and is matched between

switches to 10

Ω max. The off-leakage current is only

0.5nA at +25°C and 10nA at +85°C.

The MAX4511 has four normally closed switches. The

MAX4512 has four normally open switches. The

MAX4513 has two normally closed and two normally

open switches.

These CMOS switches can operate with dual power

supplies ranging from ±4.5V to ±18V or a single supply

between +9V and +36V.

All digital inputs have +0.8V and +2.4V logic thresh-

olds, ensuring both TTL- and CMOS-logic compatibility

when using ±15V or a single +12V supply.

Applications

ATE Equipment

Data Acquisition

Industrial and Process-Control Systems

Avionics

Redundant/Backup Systems

Features

o ±40V Fault Protection with Power Off

±36V Fault Protection with ±15V Supplies

o All Switches Off with Power Off

o Rail-to-Rail Signal Handling

o Output Clamped to Appropriate Supply Voltage

During Fault Condition; No Transition Glitch

o 175

Ω max Signal Paths with ±15V Supplies

o No Power-Supply Sequencing Required

o ±4.5V to ±18V Dual Supplies

+9V to +36V Single Supply

o Low Power Consumption, <2mW

o Four Separately Controlled SPST Switches

o Pin-Compatible with Industry-Standard

DG411/DG412/DG413, DG201/DG202/DG213

o TTL- and CMOS-Compatible Logic Inputs with

Single +9V to +15V or ±15V Supplies

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

________________________________________________________________

Maxim Integrated Products

1

TOP VIEW

DIP/SO

MAX4511

LOGIC

SWITCH

0

1

ON

OFF

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

IN2

COM2

NC2

V+

V-

NC1

COM1

IN1

MAX4511

N.C.

NC3

COM3

IN3

IN4

COM4

NC4

GND

N.C. = NOT CONNECTED

SWITCHES SHOWN FOR LOGIC "0" INPUT.

ALL SWITCHES ARE OFF WITH POWER REMOVED.

19-4760; Rev 0; 6/98

Ordering Information continued at end of data sheet.

*

Contact factory for dice specifications.

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

Ordering Information

PART

TEMP. RANGE

PIN-PACKAGE

MAX4511C/D

0°C to +70°C

Dice*

MAX4511CPE

0°C to +70°C

16 Plastic DIP

MAX4511CSE

0°C to +70°C

16 Narrow SO

Continued at end of data sheet.

MAX4511EPE

-40°C to +85°C

16 Plastic DIP

MAX4511MJE

-55°C to +125°C

16 CERDIP

MAX4511ESE

-40°C to +85°C

16 Narrow SO

Pin Configurations/

Functional Diagrams/Truth Tables