AD7781
Overview
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.
- Parameter Output Data Rate RMS Noise C Grade B Grade P-P Resolution C Grade B Grade Settling Time Gain = 128 10 Hz 16.7 Hz 44 nV 55 nV 17.6 17.3 300 ms 65 nV 90 nV 17.1 16.6 120 ms 10 Hz Gain = 1 16.7 Hz 2.7 μV 2.7 μV 18.7 18.7 120 ms
- 4 μV 2.4 μV 18.8 18.8 300 ms
