What happens to the AD5777 unused channel

Question

I only used the AD5755's A and B channels to output 24mA current, and the C and D channels were not used, what should I do with the pins REST_x, COMPDCDC_x, and IOUT_x/VOUT_x, and can I leave it floating or grounded？ 
 Thanks for your answer！

FlynnEdmund · Answer

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

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What happens to the AD5777 unused channel