RHD5931 Datasheet, PDF (1/4 Pages) Aeroflex Circuit Technology – RadHard-by-Design RHD5931 Digital-to-Analog Converter 11-Bit Buffered Output

Standard Products
RadHard-by-Design
Datasheet
RHD5931 Digital-to-Analog Converter
11-Bit Buffered Output
www.aeroflex.com/RHDseries
March 17, 2014
FEATURES
? Radiation performance
- Total dose:
- ELDRS Immune
- SEL Immune:
- Neutron Displacement Damage:
>1 Mrad(Si), Dose rate = 50 - 300 rads(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
? Full 4-quadrant multiplying DAC
? CMOS/TTL inputs
D10:D00
VCC PREF
11-Bit
D-to-A
Unity Gain
Buffer
AOUT
? Full military temperature range
? Designed for aerospace and high reliability space applications
GND NREF
? Packaging – Hermetic ceramic SOIC
- 16 leads, 0.411"L x 0.293"W x 0.090"Ht
- Typical Weight 0.8 grams
SCHEMATIC SYMBOL
? Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
The Aeroflex 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 C