SCD5921 Rev D

FEATURES

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Single power supply operation at 3.3V to 5V

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Radiation performance

- Total dose:

>1Mrad(Si); Dose rate = 50 - 300 rads(Si)/s

- ELDRS Immune

- SEL Immune

- Neutron Displacement Damage

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Full military temperature range

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Low Power consumption when enabled

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CMOS analog switching allows rail to rail operation and low switch impedance

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High input impedance

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Designed for aerospace and high reliability space applications

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Packaging – Hermetic ceramic

- 24-pin, 0.614"L x 0.300"W x 0.105"Ht SOIC

- Typical Weight 2 grams

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

RadHard-by-Design

GENERAL DESCRIPTION

Aeroflex’s RHD5921 is a radiation hardened, single supply, 16 channel buffered output multiplexer in a

24-pin SOIC package. The RHD5921 design uses specific circuit topology and layout methods to mitigate

total ionizing dose effects and single event latchup. These characteristics make the RHD5921 especially

suited for the harsh environment encountered in Deep Space missions. It is guaranteed operational from

-55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RHD5921 is ideal

for demanding military and space applications.

ORGANIZATION AND APPLICATION

The RHD5921 is a 16 to 1 CMOS buffered output voltage multiplexer. Channel selection is controlled by 4

bit binary addressing and an active low enable. Multiplexed voltages are buffered by a unity gain CMOS

Rail-to-Rail amplifier. When the RHD5921 is disabled, the chip is put into a power-down state and the

output is tri-stated.

effects are application dependent.

Standard Products

March 4, 2015

www.aeroflex.com/RHDseries

RHD5921 Analog Voltage Multiplexer

16-Channel, Buffered

Datasheet