This document is a data sheet about the AD5791 model, which describes the features and characteristics of the product, such as resolution, INL, noise spectral density, linearity stability, temperature drift, etc.
The AD5791 is a single‑ended, 20‑bit voltage‑output DAC designed for high‑precision applications such as medical instrumentation, test and measurement, and industrial control. It offers 1 ppm resolution, 1 ppm INL, low noise (7.5 nV/√Hz), and a wide bipolar supply range up to ±16.5 V.
The device features a versatile 3‑wire serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP standards, a power‑on reset that forces the output to 0 V, and configurable output‑clamp functionality. Detailed specifications, timing characteristics, pin descriptions, and typical performance graphs are provided throughout the sheet.
| Resolution | 20 Bits |
|---|---|
| Integral Nonlinearity (INL) | ±0.25 LSB |
| Noise Spectral Density | 7.5 nV/√Hz |
| Power Supply Range | ±16.5 V |
| Operating Temperature Range | −40 °C to +125 °C |
| Settling Time | 1 µs |
| DC Output Impedance (Normal Mode) | 3.4 kΩ |
| Maximum Serial Clock Rate | 35 MHz |
The AD5791 provides a 20‑bit resolution.
It can operate from a bipolar supply up to ±16.5 V.
The device settles in about 1 µs.