GENERAL DESCRIPTION
The AD7871 and AD7872 are fast, complete, 14-bit analog-todigital converters. They consist of a track/hold amplifier, successive-approximation ADC, 3 V buried Zener reference and versatile interface logic. The ADC features a self-contained, 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
    2s 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
    16-Lead SOIC (AD7872)
   
APPLICATIONS
    Digital Signal Processing
    High Speed Modems
    Speech Recognition and Synthesis
    Spectrum Analysis
    DSP Servo Control