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AD7731 Datasheet Low Noise High Throughput 24-Bit Sigma-Delta ADC

Manufacturer: Analog Devices

General Description

The AD7731 is a complete analog front-end for process control applications.

The device has a proprietary programmable gain front end that allows it to accept a range of input signal ranges, including low level signals, directly from a transducer.

The sigmadelta architecture of the part consists of an analog modulator and a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time.

Overview

a.

Key Features

  • 24-Bit Sigma-Delta ADC 16 Bits p-p Resolution at 800 Hz Output Rate Programmable Output Rates up to 6.4 kHz Programmable Gain Front End ؎0.0015% Nonlinearity Buffered Differential Inputs Programmable Filter Cutoffs FASTStep™.
  • Mode for Channel Sequencing Single Supply Operation.