工业I/V输出驱动器单电源55伏最大供应可编程范围ad5751数据表

　　The AD5751 is a single-channel， low cost， precision， voltage/ current output driver with hardware or software programmable output ranges. The software ranges are configured via an SPI-/ MICROWIRE™-compatible serial interface. The AD5751 targets applications in PLC and industrial process control. The analog input to the AD5751 is provided from a low voltage， single-supply digital-to-analog converter （DAC） and is internally conditioned to provide the desired output current/voltage range. The output current range is programmable across three current ranges： 0 mA to 20 mA， 0 mA to 24 mA， or 4 mA to 20 mA. Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V， 0 V to 10 V， and 0 V to 40 V output ranges. An overrange is available on the voltage ranges. Analog outputs are short-circuit and open-circuit protected and can drive capacitive loads of 1 µF and inductive loads of 0.1 H. The device is specified to operate with a power supply range from 10.8 V to 55 V. Output loop compliance is 0 V to AVDD − 2.75 V. The flexible serial interface is SPI and MICROWIRE compatible and can be operated in 3-wire mode to minimize the digital isolation required in isolated applications. The interface also features an optional PEC error checking feature using CRC-8 error checking， useful in industrial environments where data communication corruption can occur. The device also includes a power-on reset function ensuring that the device powers up in a known state （0 V or tristate） and an asynchronous CLEAR pin that sets the outputs to zeroscale/midscale voltage output or the low end of the selected current range. An HW SELECT pin is used to configure the part for hardware or software mode on power-up.