AD7862

a Simultaneous Sampling Dual 250 kSPS 12-Bit ADC AD7862 FEATURES Two Fast 12-Bit ADCs Four Input Channels Simultaneous Sampling & Conversion 4 ␮s Throughput Time Single Supply Operation Selection of Input Ranges: ؎10 V for AD7862-10 ؎2.5 V for AD7862-3 0 V to 2.5 V for AD7862-2 High Speed Parallel Interface Low Power, 60 mW typ Power Saving Mode, 50 ␮W typ Overvoltage Protection on Analog Inputs 14-Bit Pin Compatible Upgrade (AD7863) APPLICATIONS AC Motor Control Uninterrupted Power Supplies Data Acquisition Systems Communications GENERAL DESCRIPTION The AD7862 is a high speed, low power, dual 12-bit A/D converter that operates from a single +5 V supply. The part contains two 4 µs successive approximation ADCs, two track/ hold amplifiers, an internal +2.5 V reference and a high speed parallel interface. There are four analog inputs that are grouped into two channels (A & B) selected by the A0 input. Each channel has two inputs (VA1 & VA2 or VB1 & VB2) that can be sampled and ...