General Description

The MAX4508/MAX4509 are 8-to-1 and dual 4-to-1 fault protected multiplexers that are pin-compatible with the industry-standard DG508/DG509. The MAX4508/MAX4509 operate with dual supplies of ±4.5V to ±20V or a single supply of +9V to +36V. These multiplexers feature fault-protected inputs, Rail-to-Rail® signal handling capability, and overvoltage clamping at 150mV beyond the rails.

Features

♦ ±40V Fault Protection with Power Off

   ±25V Fault Protection with ±15V Supplies

♦ Rail-to-Rail Signal Handling

♦ No Power-Supply Sequencing Required

♦ All Channels Off with Power Off

♦ Output Clamped to Appropriate Supply Voltage

   During Fault Condition

♦ 1kΩ Output Clamp Resistance During

   Overvoltage

♦ 400Ωmax On-Resistance

♦ 20ns Fault-Response Time

♦ ±4.5V to ±20V Dual Supplies

   +9V to +36V Single Supply

♦ TTL/CMOS-Compatible Logic Inputs

Applications

   Data-Acquisition Systems

   Industrial and Process Control

   Avionics

   Signal Routing

   Redundant/Backup Systems