GENERAL DESCRIPTION

The AD7656-1/AD7657-1/AD7658-11 are reduced decoupling pin- and software-compatible versions of AD7656/AD7657/AD7658. The AD7656-1/AD7657-1/AD7658-1 devices contain six 16-/14-/12-bit, fast, low power successive approximation ADCs in a package designed on the iCMOS® process (industrial CMOS).

FEATURES

Pin and software compatible with AD7656/AD7657/AD7658 featuring reduced decoupling requirements

6 independent ADCs

True bipolar analog inputs

Pin-/software-selectable ranges: ±10 V, ±5 V

Fast throughput rate: 250 kSPS

iCMOS process technology

Low power 140 mW at 250 kSPS with 5 V supplies

High noise performance with wide bandwidth 88 dB SNR at 10 kHz input frequency

On-chip reference and reference buffers

High speed parallel, serial, and daisy-chain interface modes

High speed serial interface SPI/QSPI™/MICROWIRE™/DSP compatible

Standby mode: 25 μW max

64-lead LQFP

APPLICATIONS

Power line monitoring and measuring systems

Instrumentation and control systems

Multiaxis positioning systems