AD7864

4-Channel, Simultaneous Sampling, High Speed, 12-Bit ADC AD7864 01341-001 FEATURES High speed (1.65 μs) 12-bit ADC 4 simultaneously sampled inputs 4 track-and-hold amplifiers 0.35 μs track-and-hold acquisition time 1.65 μs conversion time per channel HW/SW select of channel sequence for conversion Single-supply operation Selection of input ranges ±10 V, ±5 V for AD7864-1 ±2.5 V for AD7864-3 0 V to 2.5 V, 0 V to 5 V for AD7864-2 High speed parallel interface that allows Interfacing to 3 V processors Low power, 90 mW typical Power saving mode, 20 μW typical Overvoltage protection on analog inputs APPLICATIONS AC motor control Uninterrupted power supplies Data acquisition systems Communications GENERAL DESCRIPTION The AD7864 is a high speed, low power, 4-channel, simultaneous sampling 12-bit analog-to-digital converter (ADC) that operates from a single 5 V supply. The part contains a 1.65 μs successive approximation ADC, four track-and-hold amplifiers, a 2.5 V reference, an on-c...