The AD5422 is a 16-bit serial input, programmable current source/voltage output DAC
The AD5422 is a low‑cost, precision 16‑bit DAC that provides both a programmable current source (4‑20 mA, 0‑20 mA or 0‑24 mA) and programmable voltage output (0‑5 V, 0‑10 V, ±5 V, ±10 V). It features a flexible SPI/Microwire‑compatible serial interface, on‑chip reference, fault detection, and an asynchronous CLEAR pin.
Designed for industrial process control, the device operates from a 10.8 V to 40 V supply, supports capacitive loads up to 1 µF and inductive loads up to 1 H, and includes a power‑on‑reset function to guarantee a known start‑up state.
| Resolution | 16 bits |
|---|---|
| Voltage Output Ranges | 0‑5 V, 0‑10 V, ±5 V, ±10 V |
| Current Output Ranges | 4‑20 mA, 0‑20 mA, 0‑24 mA |
| Power Supply Range (AVop) | 10.8 V to 40 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Voltage Total Unadjusted Error (TUE) | 0.1 % FSR max |
| Voltage Output Drift | 5 ppm/°C |
The AD5422 uses a flexible serial interface that is SPI and Microwire compatible and can operate in 3‑wire mode.
It ensures the device powers up in a known state.
The outputs can drive capacitive loads of up to 1 µF and inductive loads of up to 1 H.