Our customer is asking a question about ADA4691-4. Could you please help us to check this question? Thank you.
Q: If we don't using one OPA of ADA4691-4 (Pin1,15,16). We should leave those pin to GND/VCC/floating? Do you have document for this applicaton?
Please configure the un-used op amp into a buffer config and have the input tied between your supply rails.
Here is a good read about your question:https://www.analog.com/en/analog-dialogue/raqs/raq-issue-46.html
Thanks and regards.