Question
The customer would like to use 2 out of 4 inputs and outputs in the single-ended configuration [A and B]. What is recommended to do with the unusedports [C and D]? GND them or they can just leave it open without any impact on performance? No reference to this has been made in datasheet.
Answer
The unused ADA8282 inputs and outputs should either be left floating, or have the inputs AC coupled to ground and outputs floating. The inputscannot be tied directly to ground.