The AD5412 is a low-cost, precision, fully integrated 12-bit converter offering a programmable current source and voltage output.
The AD5412 is a low‑cost, precision, single‑channel 12‑bit DAC that provides both programmable current source (4‑20 mA, 0‑20 mA, 0‑24 mA) and programmable voltage output (0‑5 V, 0‑10 V, ±5 V, ±10 V). It operates from a 10.8 V to 40 V supply and includes on‑chip reference, fault detection, and an asynchronous CLEAR function. The device can drive capacitive loads up to 1 µF and inductive loads up to 1 H, making it suitable for process control, PLCs, and actuator applications.
The datasheet details the functional block diagram, pin configuration, timing characteristics, AC performance, and absolute maximum ratings. Key specifications include 12‑bit resolution, 0.1 % total unadjusted error, 5 ppm/°C drift, 8 µs voltage settling time, 1 V/µs slew rate, and operation over –40 °C to +85 °C. Serial interfaces are SPI and Microwire compatible, with support for daisy‑chain operation.
| Resolution | 12 Bits |
|---|---|
| Voltage Output Ranges | 0‑5 V, 0‑10 V, ±5 V, ±10 V |
| Power Supply Range | 10.8 V to 40 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Output Impedance | 50 MΩ typ |
| Voltage Settling Time | 8 µs typ (full‑scale step) |
| Slew Rate | 1 V/µs typ |
| Output Noise (0.1 Hz‑10 Hz) | 0.1 LSB p‑p typ |
The device offers 0‑5 V, 0‑10 V, ±5 V, and ±10 V output ranges.
The AD5412 operates from a supply voltage of 10.8 V to 40 V.
It is specified for operation from –40 °C to +85 °C.