MUX8531 Datasheet, PDF (1/8 Pages) Aeroflex Circuit Technology – MUX8531 16-Channel Analog Multiplexer Module Radiation Tolerant and ESD Protected Kelvin Measurement Configured

Standard Products
MUX8531 16-Channel Analog Multiplexer Module
Radiation Tolerant & ESD Protected
Kelvin Measurement Configured
www.aeroflex.com/mux
May 17, 2011
FEATURES
❑ 16 Kelvin measurement channels provided by two 16-channel multiplexers
❑ Radiation performance
- Total dose:
- SEU:
150 krads(Si), Dose rate = 50 - 300 rads(Si)/s
Immune up to 90 MeV-cm²/mg
- SEL:
Immune by process design
❑ Full military temperature range
❑ Low power consumption < 30mW
❑ One address bus (A0-3), and one enable line
❑ All channel inputs protected by ±20V nominal Transorbs
❑ Fast access time < 500ns typical
❑ Break-Before-Make switching
❑ High analog input impedance (power on or off )
❑ Designed for aerospace and high reliability space applications
❑ Packaging – Hermetic ceramic
- 56 leads, 0.80"Sq x 0.20"Ht quad flat pack
- Typical Weight 6 grams
GENERAL DESCRIPTION
Aeroflex’s MUX8531 is a radiation tolerant, 16 Kelvin measurement channel multiplexer MCM (Multi
Chip Module) with electrostatic discharge (ESD) protection on all channel inputs.
The MUX8531 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
MUX8531 is ideal for demanding military and space applications.
ORGANIZATION AND APPLICATION
The MUX8531 consists of two 16 channel multiplexers arranged as shown in the block diagram,
addressable by bus A₀~A₃ including enable which connects the addressed channel to two separate 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.
SCD8531 Rev B