AD7191BRUZ Description

The AD7191BRUZ is a low-noise, complete analogue front end for high-precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) ADC. 

AD7191BRUZ Features

• 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°C

• Package: 24-lead TSSOP 

AD7191BRUZ Applications

• Weigh scales

• Strain gauge transducers

• Pressure measurement

• Medical and scientific instrumentation