AD5749 is a single-channel, low-cost, high-precision, current output driver with programmable output range through hardware or software programming. The main features include: programmable current output range, low total unadjusted error (TUE), low output temperature drift, open circuit protection, and flexible serial interface.
The AD5749 is a single‑channel industrial current/voltage output driver designed for process‑control and actuator‑control applications. It offers programmable output ranges of 0 mA‑24 mA or 4 mA‑20 mA, selectable via hardware or software, and includes open‑circuit protection for inductive loads.
The device operates from a single supply (AVDD 12 V ±10 % to 55 V) and provides a loop‑compliance voltage of AVDD‑2.75 V. Its serial interface is compatible with SPI and Microwire, supports up to 50 MHz clock rates, and includes optional PEC CRC‑8 error checking for robust communication in industrial environments. This manual is written in Chinese.
| Output current range | 0 mA–24 mA or 4 mA–20 mA |
|---|---|
| Supply voltage (AVDD) | 12 V ±10 % to 55 V |
| Operating temperature range | -40 °C to +105 °C |
| Loop compliance voltage | AVDD – 2.75 V |
| Load resistance (RLOAD) | 300 Ω |
The AD5749 can be programmed for either 0 mA to 24 mA or 4 mA to 20 mA output current.
It operates from a single supply voltage (AVDD) of 12 V ±10 % up to 55 V.
The device is rated for temperatures from –40 °C to +105 °C.
The AD5749 is offered in a 32‑pin LFCSP package.