GENERAL DESCRIPTION
The AD7894 is a fast, 14-bit ADC that operates from a single +5 V supply and is housed in a small 8-lead SOIC. The part contains a 5 µs successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock and a high speed serial interface.

FEATURES
    Fast 14-Bit ADC with 5 ms Conversion Time
    8-Lead SOIC Package
    Single 5 V Supply Operation
    High Speed, Easy-to-Use, Serial Interface
    On-Chip Track/Hold Amplifier
    Selection of Input Ranges
        ±10 V for AD7894-10
        ±2.5 V for AD7894-3
        0 V to +2.5 V for AD7894-2
    High Input Impedance
    Low Power: 20 mW Typ
    Pin Compatible Upgrade of 12-Bit AD7895