The DAC8750 and DAC7750 are low-cost, precision, fully-integrated, 16-bit and 12-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process control applications. These devices can be programmed as a current output with a range of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The DAC8750 and DAC7750 include reliability features such as CRC error checking on the serial peripheral interface (SPI) frame, a watchdog timer, an open circuit, compliance voltage, and thermal alarm. In addition the output current can be monitored by accessing an internal precision resistor.

These devices include a power-on-reset function to ensure powering up in a known state (both IOUT is disabled and in a high-impedance state). The CLR pin sets the current output to the low-end of the range if the output is enabled. Zero code error and gain error calibration registers can be programmed to digitally calibrate the device in the end system. The output slew rate is also programmable. These devices can AC couple an external HART signal on the current output and can operate with either a 10-V to 36-V supply.