1

File Number

3143.2

HI-506A, HI-507A, HI-508A, HI-509A

16-Channel, 8-Channel, Differential

8-Channel and Differential 4-Channel,

CMOS Analog MUXs with Active

Overvoltage Protection

The HI-506A, HI-507A, HI-508A and HI-509A are analog

multiplexers with active overvoltage protection. Analog input

levels may greatly 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

also 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 HI-506A, HI-507A, HI-508A and HI-509A

ideal for use in systems where the analog inputs originate

from external equipment, or separately powered circuitry. All

devices are fabricated with 44V dielectrically isolated CMOS

technology. The HI-506A is a single 16-Channel multiplexer,

the HI-507A is an 8-Channel differential multiplexer, the

HI-508A is a single 8-Channel multiplexer and the HI-509A is

a differential 4-Channel multiplexer. If input overvoltage

protection is not needed the HI-506/507/508/509

multiplexers are recommended. For further information see

Application Notes AN520 and AN521.

Features

• No Channel Interaction During Overvoltage

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

• Fail Safe with Power Loss (No Latch-Up)

• Break-Before-Make Switching

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

±15V

• Access Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns

• Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . 7.5mW

Applications

• Data Acquisition Systems

• Industrial Controls

• Telemetry

Ordering Information

PART

NUMBER

TEMP. RANGE

PACKAGE

PKG.

NO.

HI1-0506A-2

-55 to 125

28 Ld CERDIP

F28.6

HI1-0506A-5

0 to 75

28 Ld CERDIP

F28.6

HI1-0506A-8

-55 to 125

+ 160 Hour Burn-In

28 Ld CERDIP

F28.6

HI3-0506A-5

0 to 75

28 Ld PDIP

E28.6

HI1-0507A-8

-55 to 125

+ 160 Hour Burn-In

28 Ld CERDIP

F28.6

HI3-0507A-5

0 to 75

28 Ld PDIP

E28.6

HI1-0508A-7

0 to 75

+ 96 Hour Burn-In

16 Ld CERDIP

F16.3

HI1-0508A-8

-55 to 125

+ 160 Hour Burn-In

16 Ld CERDIP

F16.3

HI3-0508A-5

+0 to 75

16 Ld PDIP

E16.3

HI1-0509A-2

-55 to 125

16 Ld CERDIP

F16.3

HI1-0509A-5

0 to 75

16 Ld CERDIP

F16.3

HI1-0509A-8

-55 to 125

+ 160 Hour Burn-In

16 Ld CERDIP

F16.3

HI3-0509A-5

0 to 75

16 Ld PDIP

E16.3

Data Sheet

June 1999

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

1-888-INTERSIL or 321-724-7143