AD7194 Datasheet (Analog Devices) - 24-Bit Sigma-Delta ADC

AD7194, 24-Bit Sigma-Delta ADC

The AD7194 is a low noise, complete analog front end for high precision measurement applications.

It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC).

The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC.

The device

AD7194 Features

* Fast settling filter option 8 differential/16 pseudo differential input channels RMS noise: 11 nV at 4.7 Hz (gain = 128) 15.5 noise-free bits at 2.4 kHz (gain = 128) Up to 22 noise-free bits (gain = 1) Offset drift: ±5 nV/°C Gain drift: ±1 ppm/°C Programmable gain (1 to 128) Output data rate: 4.7 Hz