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HI3-506A-5

16-Channel, 8-Channel, Differential 8-Channel and Differential 4-Channel, CMOS Analog MUXs with Active Overvoltage Protection

Intersil 

®

Data Sheet

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

October 30, 2007

FN3143.6

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

constant 70VP-P levels with ±15V supplies. Digital inputs will

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 1kΩ 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 Note AN520.

Features

• Analog Overvoltage . . . . . . . . . . . . . . . . . . . . . . . . 70VP-P

• 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

• Pb-Free Available (RoHS Compliant)

Applications

• Data Acquisition Systems

• Industrial Controls

• Telemetry

1

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

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