The EVAL-CN0321-SDPZ is a circuit evaluation board which provides a complete, fully isolated, analog output channel. This channel is suitable for programmable logic controllers (PLCs) and distributed control system (DCS) modules that require standard 4mA to 20mA HART compatible current outputs and unipolar or bipolar output voltage ranges. This circuit evaluation board utilizes AD5422 16bit current and voltage output DAC, AD5700-1 low power HART modem with internal RC oscillator, ADP2441 step down DC to DC regulator, ADuM3471 quad isolator and ADuM3482 quad digital isolator. The board provides a flexible building block for channel to channel isolated PLC/DCS output modules or any other industrial application that requires a fully isolated analog output. The circuit also includes external protection on the analog output terminals. PLC/DCS solutions must be isolated from the local system controller to protect against ground loops and to ensure robustness against external events.
- Voltage and 4mA to 20mA output
- Fully isolated
- HART connectivity
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