ADuM260NRecommended for New Designs
The ADuM260N/ADuM261N/ADuM262N/ADuM263N1
are
6-channel digital isolators based on Analog Devices, Inc., iCoupler®
technology. Combining high speed, complementary...
Datasheet ADuM260N on Analog.com
The ADuM260N input is not biased one way or the other. The input(and so also the output) state are indeterminate when floating. It would be best practice to bias the input to GNDx or VDDx if the channel is unused or left to float.
