General Description
Aeroflex’s ACT8503 is a radiation hardened, multi-chip 48 channel multiplexer MCM (multi-chip module) with ESD protection for use in space applications. All channel inputs have electrostatic discharge protection.

Features
■ Radiation Environment
    • Radiation 300K(Si) Total Dose
    • No Latch-Up or SEE to 120MeV/cm2/mg
■ Full Military Temperature Range
■ Low Power Consumption < 90mW
■ 48 Channels Provided by three (3) HS-1840RH Multiplexers
■ One Address Bus (A0 - A3) and Three Enable Lines
■ All Channel Inputs protected by ±20V Transorbs
■ Fast Access Time 1500ns
■ ±35V Input Over Voltage Protection (Power On or Off)
■ Break-Before-Make Switching
■ High Analog Input Impedance (Power On or Off)
■ Dielectrically Isolated Device Islands
■ No Latch-Up
■ Packaging – Hermetic Ceramic Quad Flat Pack
    • 96 Leads, 1.32"Sq x .20"Ht Quad Flat Pack
    • Typical Weight 15 grams
■ DESC SMD Pending