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

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active CERDIP Tube 13
Availability
Active CERDIP Tube 13
Availability
Active PDIP Tube 143
Availability

Documentation

Title language Type Format File Size Date
Datasheets & Errata
HI-506A, HI-507A, HI-508A, HI-509A Datasheet Datasheet PDF 1.10 MB
Application Notes & White Papers
AN557: Recommended Test Procedures for Analog Switches Application Note PDF 468 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
AN1032: Analog Multiplexers and Overvoltage Protection Application Note PDF 195 KB
AN1033: Multiplexered Data Acquisition System Considerations Application Note PDF 302 KB
AN1034: CMOS Analog Multiplexers and Switches, Applications Considerations Application Note PDF 300 KB
AN520: CMOS Analog Multiplexers and Switches; Specifications and Application Considerations Application Note PDF 270 KB
PCNs & PDNs
PA14064 - Minimum Line Quantity Change Product Advisory PDF 282 KB
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PIN17006 - Q1 2017 Price Increase Price Increase Notice PDF 227 KB