GENERAL DESCRIPTION
The AD7871/AD7872 are fast, complete, 14-bit analog-to-digital converters (ADC). They consist of a track-and-hold amplifier, successive approximation ADC, 3 V buried Zener reference, and versatile interface logic. The ADC features a selfcontained, laser trimmed internal clock, so no external clock timing components are required. The on-chip clock may be overridden to synchronize ADC operation to the digital system for minimum noise.
   
FEATURES
    Complete monolithic 14-bit ADC
    Twos complement coding
    Parallel, byte, and serial digital interface
    80 dB SNR at 10 kHz input frequency
    57 ns data access time
    Low power: 50 mW typ
    83 kSPS throughput rate
   
APPLICATIONS
    Digital signal processing
    High speed modems
    Speech recognition and synthesis
    Spectrum analysis
    DSP servo control