SCD8506 Rev D

GENERAL DESCRIPTION

Aeroflex’s ACT8506 is a radiation tolerant, 48 channel multiplexer MCM (multi-chip module).

The ACT8506 has been specifically designed to meet exposure to radiation environments. The multiplexer

is available in a 96 lead High Temperature Co-Fired Ceramic (HTCC) Quad Flatpack (CQFP). It is

guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534, the

ACT8506 is ideal for demanding military and space applications.

ORGANIZATION AND APPLICATION

The ACT8506 consists of six 16 channel multiplexers arranged as shown in the Block Diagram. The

ACT8506 design is inherently radiation tolerant.

each block enabled separately. Each block connects the addressed channel to two outputs, "Output" and

"Current". This technique enables selecting and reading a remote resistive sensor without the MUX

resistance being part of the measurement. For grounded sensors, this is done by passing current to the

sensor by means of the "Current" pin and reading the resultant voltage (proportional to the sensor

resistance) at the "Output" pin.

ACT8506 48-Channel Analog Multiplexer Module

Radiation Tolerant

FEATURES



48 channels provided by six 16-channel multiplexers

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Radiation performance

- Total dose:

300 krads(Si), Dose rate = 50 - 300 rads(Si)/s

- SEU:

- SEL:

Immune by process design



Full military temperature range

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Low power consumption < 90mW



One address bus (A0-3) and three enable lines afford flexible organization



Fast access time 1500ns typical



Break-Before-Make switching

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Same Form / Fit / Function as ACT8502 minus channel input transorbs

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Designed for aerospace and high reliability space applications



Packaging – Hermetic ceramic

- 96 leads, 1.32"Sq x 0.20"Ht quad flat pack

- Typical Weight 15 grams



Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.

www.aeroflex.com/mux

Standard Products

May 5, 2014

Datasheet