AD7781 Datasheet - Analog Devices

AD7781 Low Power Sigma-Delta ADC

The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-chip oscillator. Consum.

AD7781 Features

* Pin-programmable filter response Update rate: 10 Hz or 16.7 Hz Pin-programmable in-amp gain Pin-programmable power-down and reset Status function Internal clock oscillator Internal bridge power-down switch Current 115 μA typical (gain = 1) 330 μA typical (gain = 128) Simultaneous 50 Hz/60 Hz rejecti

AD7781_AnalogDevices.pdf