MUX8521 datasheet(1/8 Pages) AEROFLEX

部件名	MUX8521

功能描述	MUX8521 16-Channel Analog Multiplexer Module Radiation Tolerant & ESD Protected Kelvin Measurement Configured

PDF	8 Pages

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制造商	AEROFLEX [Aeroflex Circuit Technology]

网页	http://www.aeroflex.com

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SCD8521 Rev B

FEATURES

❑ 16 Kelvin measurement channels provided by two 16-channel multiplexers

❑ Radiation performance

- Total dose:

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

- SEU:

Immune up to 120 MeV-cm2/mg

- SEL:

Immune by process design

❑ Full military temperature range

❑ Low power consumption < 30mW

❑ One address bus A0~A3, and one enable line

❑ All channel inputs protected by ±20V nominal Transorbs

❑ Fast access time 1500ns 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

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,

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.

Standard Products

May 17, 2011

www.aeroflex.com/mux

Kelvin Measurement Configured

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