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/hold amplifier which 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
    Onboard Reference 2.5 V
    Flexible Power/Throughput Rate Management
    Simultaneous Conversion/Read
    No Pipeline Delays
    High-Speed Serial Interface SPI™/QSPI™/
        MICROWIRE™/DSP Compatible
    Shut-Down Mode
        1 μA Max
    20-Lead TSSOP Package