AD7191 - Sigma-Delta ADC

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Analog Devices

Part number	AD7191
Manufacturer	Analog Devices
File Size	541.55 KB
Description	Sigma-Delta ADC
Datasheet	AD7191 Datasheet
Additional preview pages of the AD7191 datasheet.

The AD7191 is a low noise, complete analog front end for high precision measurement applications.

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

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

Pin-programmable output rate Output data rate: 10 Hz, 50 Hz, 60 Hz, 120 Hz Pin-programmable PGA Gain: 1, 8, 64, 128 Pin-programmable power-down and reset RMS noise: 15 nV @ 10 Hz (gain = 128) Up to 21.5 noise free bits (gain = 1) Internal or external clock Bridge power-down switch Offset drift: 5 nV/°C Gain drift: 1 ppm/°C Specified drift over time Simultaneous 50 Hz/60 Hz rejection Internal temperature sensor Power supply: 3 V to 5.25 V Current: 4.35 mA Temperature range:.
40°C to +105°.

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Published: Oct 5, 2009 |