AD7884

a LC2MOS 16-Bit, High Speed Sampling ADCs AD7884/AD7885 FEATURES Monolithic Construction Fast Conversion: 5.3 ␮s High Throughput Rate: 166 kSPS Low Power: 250 mW APPLICATIONS Automatic Test Equipment Medical Instrumentation Industrial Control Data Acquisition Systems Robotics GENERAL DESCRIPTION The AD7884/AD7885 is a 16-bit monolithic analog-to-digital converter with internal sample-and-hold and a conversion time of 5.3 µs. The maximum throughput rate is 166 kSPS. It uses a two-pass flash architecture to achieve this speed. Two input ranges are available: ± 5 V and ± 3 V. Conversion is initiated by the CONVST signal. The result can be read into a microprocessor using the CS and RD inputs on the device. The AD7884 has a 16-bit parallel reading structure while the AD7885 has a byte reading structure. The conversion result is in twos complement code. The AD7884/AD7885 has its own internal oscillator that controls conversion. It runs from ±5 V supplies and needs a VREF+ of 3 V. T...