GENERAL DESCRIPTION
The AD7716 is a signal processing block for data acquisition systems. It is capable of processing four channels with bandwidths of up to 584 Hz. Resolution is 22 bits and the usable dynamic range varies from 111 dB with an input bandwidth of 36.5 Hz to 99 dB with an input bandwidth of 584 Hz.

FEATURES
   22-Bit Sigma-Delta ADC
      Dynamic Range of 105 dB (146 Hz Input)
      ±0.003% Integral Nonlinearity
   On-Chip Low-Pass Digital Filter
      Cutoff Programmable from 584 Hz to 36.5 Hz
      Linear Phase Response
   Five Line Serial I/O
   Twos Complement Coding
   Easy Interface to DSPs and Microcomputers
   Software Control of Filter Cutoff
   ±5 V Supply
   Low Power Operation: 50 mW

APPLICATIONS
   Biomedical Data Acquisition
   ECG Machines
   EEG Machines
   Process Control
   High Accuracy Instrumentation
   Seismic Systems