1

TM

File Number

3543.4

HS-0548RH, HS-0549RH

Radiation Hardened Single 8/Differential 4

Channel CMOS Analog Multiplexers with

Active Overvoltage Protection

The HS-0548RH and HS-0549RH are radiation hardened

analog multiplexers with Active Overvoltage Protection and

exceed either power supply without damaging the device or

disturbing the signal path of other channels. Active

protection circuitry assures that signal fidelity is maintained

even under fault conditions that would destroy other

multiplexers. Analog inputs can withstand constant 70V

peak-to-peak levels with

±15V supplies and digital inputs will

sustain continuous faults up to 4V greater than either supply.

In addition, signal sources are protected from short circuiting

should multiplexer supply loss occur: each input presents

1k

Ω of resistance under this condition. These features make

the HS-0548RH and HS-0549RH ideal for use in systems

where the analog inputs originate from external equipment

or separately powered circuitry. Both devices are fabricated

with 44V dielectrically isolated CMOS technology. The

HS-0548 is an 8 channel device and the HS-0549 is a

4 channel differential version. If input overvoltage protection

is not needed, the HS-0508 and HS-509 multiplexers are

recommended.

Specifications for Rad Hard QML devices are controlled

by the Defense Supply Center in Columbus (DSCC). The

SMD numbers listed here must be used when ordering.

Detailed Electrical Specifications for these devices are

contained in SMD 5962-95694. A “hot-link” is provided

on our homepage for downloading.

http://www.intersil.com

Features

• Electrically Screened to SMD # 5962-95694

• QML Qualified per MIL-PRF-38535 Requirements

• No Latch-Up

• No Channel Interaction During Overvoltage

• Maximum Power Supply . . . . . . . . . . . . . . . . . . . . . . 44V

• Break-Before-Make Switching

• Analog Signal Range . . . . . . . . . . . . . . . . . . . . . . . .

±15V

• Access Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0

µs

Applications

• Data Acquisition Systems

• Control Systems

• Telemetry

Pinouts

HS-0548RH GDIP1-T16 (CERDIP)

OR CDIP2-T16 (SBDIP)

TOP VIEW

HS-0549RH GDIP1-T16 (CERDIP)

OR CDIP2-T16 (SBDIP)

TOP VIEW

Ordering Information

ORDERING NUMBER

INTERNAL

MKT. NUMBER

TEMP. RANGE

5962D9569401VEA

HS1-0548RH-Q

-55 to 125

5962D9569401VEC

HS1B-0548RH-Q

-55 to 125

5962D9569402VEA

HS1-0549RH-Q

-55 to 125

5962D9569402VEC

HS1B-0549RH-Q

-55 to 125

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

AO

ENABLE

IN 1

IN 2

IN 3

OUT

IN 4

A1

GND

IN 5

IN 6

IN 7

IN 8

A2

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

A0

ENABLE

IN 1A

IN 2A

IN 3A

OUTA

IN 4A

A1

IN 1B

IN 2B

IN 3B

IN 4B

OUT B

GND

Data Sheet

August 2001

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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

Copyright © Intersil Americas Inc. 2001, All Rights Reserved