What happens to the AD5777 unused channel

Hi YolandaO .

For unused channels, the DAC output is disabled by default (DAC Control Register OUTEN=0). You can leave IOUTx and VOUTx floating. For RSETx, you can select the internal resistor (RSET=1) for the selected DAC channel. For COMPDCDCx, if you are using the internal compensation, it's ok to leave it open as well. But if you're using external resistor for compensation, a ~50 kΩ resistor in series with a 10 nF dc-to-dc compensation capacitor to ground is recommended.

Regards,

Flynn

Thank you very much for your guidance, and I would like to ask you to help me see if the schematic of the AD5755 is correct, as the size of the PCB is limited, so I want to minimize the layout area of the AD5755