Document
Data Sheet
250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar, 16-/14-/12-Bit ADC
AD7656-1/AD7657-1/AD7658-1
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: 315 µW maximum 64-lead LQFP
APPLICATIONS
Power line monitoring and measuring systems Instrumentation and control systems Multiaxis positioning systems
GENERAL DESCRIPTION
The AD7656-1/AD7657-1/AD7658-11 are reduced decoupling pinand software-compatible versions of AD7656/AD7657/AD7658. The AD7656-1/AD7657-1/AD7658-1 device.