7872 14-Bit A/D Converter

Discontinued Product. Please contact the factory for the latest replacement.

Description:

Part Number(s):7872

DDC’s 7872 high-speed 14-bit ADC microcircuit features a greater than 100 krad (Si) total dose tolerance; depending upon orbit. The 7872 consists of a track/hold amplifier, successive-approximation ADC, 3V buried Zener reference and versatile interface logic. It features a self-contained, laser- trimmed internal clock, so no external clock timing components are required. To achieve the minimum noise possible, the on-chip clock may be overridden to synchronize the device operation to the digital system. The 7872 is a serial output device. It is capable of interfacing to all modern microprocessors and digital signal processors. The 7872 operates from ±5V power supplies, accepts bipolar input signals of ±3V and is able to convert full power signals up to 41.5 kHz. It is also fully specified for dynamic performance parameters including distortion and signal-to-noise ratio.

DDC's patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, RAD-PAK® provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to DDC’s self-defined Class S.

Features:

  • 14-bit resolution and accuracy
  • Total dose hardness:
    • >100 krad (Si), depending upon space mission
  • Single event effects:
    • SEL > 104 MeV/mg/cm2
    • SEUTH = 1.4 MeV/mg/cm2
    • SEUSat = 1E-3 cm2/Device
  • Package:
    • 16 pin RAD-PAK® flat package
    • 16 pin RAD-PAK® dual-in-line package
  • Fast Conversion Times: 10 μs
  • Low 50 mW typical power consumption
  • High speed LC2MOS technology
    • Analog input range of ±3V
    • 83 KSPS throughput rate
    • Operates with +5V/-5V power supplies
    • 80 dB SNR at 10 kHz input frequency
    • Serial output

Applications:

Documentation:

 Datasheet

7872 14-Bit A/D Converter Data Sheet


 Whitepaper

How Rad Hard Do You Need? The Changing Approach To Space Parts Selection?


Proton Transport An Examination of Model and Experimental Data For Space Environment Protons


 Generic Document

DDC Custom Solutions Brochure


DDC Product Catalog


DDC Corporate Overview


Software:

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