GENERAL DESCRIPTION
The AD7819 is a high speed, microprocessor-compatible, 8-bit analog-to-digital converter with a maximum throughput of 200 kSPS. The converter operates off a single 2.7 V to 5.5 V supply and contains a 4.5 µs successive approximation A/D converter, track/hold circuitry, on-chip clock oscillator and 8-bit wide parallel interface. The parallel interface is designed to allow easy interfacing to microprocessors and DSPs. Using only address decoding logic the AD7819 is easily mapped into the microprocessor address space.

FEATURES
    8-Bit ADC with 4.5 μs Conversion Time
    On-Chip Track and Hold
    Operating Supply Range: 2.7 V to 5.5 V
    Specifications at 2.7 V – 3.6 V and 5 V ±10%
    8-Bit Parallel Interface 8-Bit Read
    Power Performance
        Normal Operation 10.5 mW, VDD = 3 V
        Automatic Power-Down 57.75 μW @ 1 kSPS, VDD = 3 V
    Analog Input Range: 0 V to VREF
    Reference Input Range: 1.2 V to VDD