SCD8521 Rev B

FEATURES

- Total dose:

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

- SEU:

- SEL:

Immune by process design

- 56 leads, 0.80"Sq x 0.20"Ht quad flat pack

- Typical Weight 6 grams

MUX8521 16-Channel Analog Multiplexer Module

Radiation Tolerant & ESD Protected

GENERAL DESCRIPTION

Aeroflex’s MUX8521 is a radiation tolerant, 16 channel multiplexer MCM (Multi Chip Module) with

electrostatic discharge (ESD) protection on all channel inputs.

The MUX8521 has been specifically designed to meet exposure to radiation environments. It is available

in a 56 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

MUX8521 is ideal for demanding military and space applications.

ORGANIZATION AND APPLICATION

The MUX8521 consists of two 16 channel multiplexers arranged as shown in the block diagram,

"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.

Standard Products

May 17, 2011

www.aeroflex.com/mux

Kelvin Measurement Configured