Analog Devices Inc. AD7862ARZ-10

Description
The AD7862 is a high-speed, low-power, dual 12-bit analog-to-digital converter (ADC) that operates from a single 5 V supply. It features two 4 µs successive approximation ADCs, two track-hold amplifiers, an internal 2.5 V reference, and a high-speed parallel interface. The four analog inputs are grouped into two channels (A and B), each with two inputs (V and V- or V1 and V2) that can be sampled and converted simultaneously. The AD7862 accepts analog input ranges of ±10 V (AD7862-10), ±2.5 V (AD7862-3), and 0-2.5 V (AD7862-2). It also provides overvoltage protection on the analog inputs, allowing input voltages up to ±17 V, ±7 V, or 7 V, respectively, without damage.

Features
Two 12-bit ADCs with 4 µs throughput time
Single 5 V supply operation
Simultaneous sampling and conversion
Selection of input ranges: ±10 V, ±2.5 V, or 0-2.5 V
High-speed parallel interface
Simultaneous sampling
Dual 250 kSPS 12-bit ADCs
Low power consumption (60 mW typ)
Power saving mode (50 µW typ)
Overvoltage protection on analog inputs
14-bit pin-compatible upgrade (AD7863)

Applications
AC motor control
Uninterrupted power supplies
Data acquisition systems
Communications