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Cobham Semiconductor - Digital-to-Analog Converter

Numéro de référence RHD5931
Description Digital-to-Analog Converter
Fabricant Cobham Semiconductor 
Logo Cobham Semiconductor 





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RHD5931 fiche technique
RadHard-by-Design Analog
RHD5931
Digital-to-Analog Converter, 11-Bit, Buffered Output
Released Datasheet
Cobham.com/HiRel
March 29, 2016
The most important thing we build is trust
FEATURES
Radiation performance
- Total dose:
- ELDRS Immune
- SEL Immune:
- Neutron Displacement Damage:
>1 Mrad(Si), Dose rate = 50-300 rad(Si)/s
>100 MeV-cm2/mg
>1014 neutrons/cm2
11-Bit DAC
Buffered Output
Single power supply operation at +3.3V to +5V
Low Power
CMOS/TTL inputs
Full military temperature range
Designed for aerospace and high reliability space applications
Packaging – Hermetic ceramic SOIC
- 16 leads, 0.417"L x 0.300"W x 0.120"Ht
- Typical Weight 0.8 grams
Radiation Hardness Assurance Plan: DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
The 11-Bit DAC is a standard CMOS R/2R Kelvin resistor network with a buffered output. The digital
inputs, D10(MSB) through D00(LSB), are buffered to drive single-pole double-throw CMOS switches to
apply either the PREF or NREF signals to the 2R legs of the resistor network.
PREF and NREF inputs can be any static or dynamic voltage within the power supply range. The nominal
values for R and 2R are 5K and 10K respectively. The characteristic impedance of the resistor network is
approximately 5K.
The voltage-output configuration of the integrated circuit can be thought of as a digitally controlled voltage
with a value of PREF-NREF with a high output impedance. The output will swing rail-to-rail if unloaded.
Applications include digital potentiometers, programmable voltage sources and a large variety of other
circuits that can be found in many industry references.
SCD5931
Rev E
1 Cobham Semiconductor Solutions
www.cobham.com/HiRel

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