AD7191BRUZ

AD7191BRUZ is an Analog Devices 24-bit sigma-delta ADC in a 24-lead TSSOP, the pin-programmable member of the AD719x bridge-sensor family: two fully differential inputs, a PGA with pin-selectable gains of 1, 8, 64 and 128, and pin-selectable output data rates of 10, 50, 60 and 120 Hz, so a weigh-scale or pressure-transmitter front end can be configured in hardware with no firmware register setup. Noise performance suits precision transducer work directly: 15 nV RMS noise at 10 Hz with gain 128, up to 21.5 noise-free bits at gain 1, offset drift of 5 nV/°C and gain drift of 1 ppm/°C hold calibration across the -40 to +105 °C range. It runs from a 3 V to 5.25 V supply at 4.35 mA. Selection advice: choose the AD7191 when fixed pin-set rates and gains cover the design and register programming is unwanted; choose the AD7193 on this site when four differential channels and a programmable 4.7 Hz to 4.8 kHz rate range are needed; match the full BRUZ code for the TSSOP-24 package. Parameters verified against the Analog Devices AD7191 product page.