APD 4381 Series DC to DC Transmitters

The APD 4381 accepts a DC input and provides an optically isolated and high accuracy DC voltage or current output.

The input and output ranges are field configurable. The input type is set with switches and its range is configured using front buttons, a multimeter and an input simulator. This provides a versatile solution that works with all commonly available DC inputs. The input is sampled and then passed through an optocoupler to the output stage.

Full 3-way isolation (input, output, power) make this module useful for ground loop elimination, common mode signal rejection, and noise pickup reduction. The low noise 18 bit analog output is isolated and can be set up for common voltage and milliamp output types.