The AD7703 is a 20-bit ADC that uses a S-D conversion technique. It features a monolithic 16-bit ADC, 0.0015% linearity error, on-chip self-calibration circuitry, programmable low-pass filter, 0V to +2.5V or -2.5V analog input range, 4kSPS output data rate, flexible serial interface, and ultralow power consumption.
The AD7703 is a 20‑bit analog‑to‑digital converter designed for high‑resolution, low‑frequency measurements in industrial process control, weighing scales, portable instrumentation and remote data acquisition. It features on‑chip self‑calibration, ultralow power standby mode, and a flexible serial interface that supports both asynchronous UART‑compatible and synchronous modes.
The device provides a 4 kSPS output data rate, selectable unipolar (0 V to 2.5 V) or bipolar (±2.5 V) input ranges, and programmable low‑pass filter corner frequencies from 0.1 Hz to 10 Hz. Detailed specifications include resolution, linearity, power‑supply requirements, pin configuration and timing characteristics.
| Output Data Rate | 4 kSPS |
|---|
It has a flexible serial port with an asynchronous UART‑compatible mode and two synchronous modes.