GENERAL DESCRIPTION
The AD7866 is a dual 12-bit high speed, low power, successive approximation ADC. The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 MSPS. The device contains two ADCs, each preceded by a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 10 MHz.
   
FEATURES
    Dual 12-Bit, 2-Channel ADC
    Fast Throughput Rate: 1 MSPS
    Specified for VDD of 2.7 V to 5.25 V
    Low Power
        11.4 mW Max at 1 MSPS with 3 V Supplies
        24 mW Max at 1 MSPS with 5 V Supplies
    Wide Input Bandwidth
        70 dB SNR at 300 kHz Input Frequency
    On-Board Reference 2.5 V
    –40°C to +125°C Operation
    Flexible Power/Throughput Rate Management
    Simultaneous Conversion/Read
    No Pipeline Delays
    High Speed Serial Interface SPI™/QSPI™/
        MICROWIRE™/DSP Compatible
    Shutdown Mode: 1 A Max
    20-Lead TSSOP Package