SCD5950 Rev G

FEATURES

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Single power supply operation 5.0V or Dual power supply for 3.3V I/O

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Radiation performance

- Total dose:

> 100krad(Si); Dose rate = 50 - 300 rads(Si)/s

- ELDRS Immune

- SEL Immune

- Neutron Displacement Damage

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16-Channel Input Multiplexer

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Successive Approximation A-to-D

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Level Shifting Digital Output Drivers allow interfaces to 5.0 or 3.3 volt logic

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Tri-State digital outputs

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Power Down (Sleep) mode

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Single or continuous conversion

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20us conversion period (20 clocks @ 1MHz Clock rate)

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Multiplexer address is latched on first clock rising edge of a cycle

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Busy and End-of-Conversion status outputs

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Full military temperature range

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Designed for aerospace and high reliability space applications

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Packaging – Hermetic Ceramic

- 48 leads, 0.700"Sq x 0.125"Ht quad flat pack

- Weight - 6 grams max

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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 RHD5950 is a radiation hardened, single supply, 16-Channel Multiplexed Analog-to-Digital

converter in a 48-pin Ceramic Quad Flat Package. The RHD5950 design uses specific circuit topology and

layout methods to mitigate total ionizing dose effects and single event latchup. It is guaranteed operational

from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RHD5950 is

ideal for demanding military and space applications.

ORGANIZATION AND APPLICATION

The RHD5950 takes 16 analog sensor signals and using 4 address inputs and an enable input, selects one of

the 16 analog inputs and performs a 14-bit successive approximation analog-to-digital conversion in a

nominal period of 20 clock cycles (20uS nominal). The 14-bit digital output has a tri-state control allowing

the connection of multiple RHD5950s. This provides the ability to interface many sensor voltage readings

to the digital processor data bus. The full-scale range is determined by reference input voltages. The input

impedance of the reference/span terminals is typically a constant 4K ohms.

Standard Products

January 14, 2016

www.aeroflex.com/RHDseries

RHD5950 16-Channel Multiplexed

14-Bit Analog-to-Digital Converter

Datasheet