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AD9528 reference input noise sensitivity and behaviour with no input signal

Category: Datasheet/Specs
Product Number: AD9528


Please could you let me know what the 5mV input noise sensitivity means on page 5 of the datasheet?

Also, we are planning to use an AC coupled clock into the reference pins, as shown in the picture below from page 22 of the datasheet. If the clock signal is not present then the P and N pins will presumably sit at the internally generated common mode voltage. As the P and N pin voltages are the same, will the input buffer oscillate or be sensitive to external noise? If so, should we add a fail-safe circuit to force P and N to have an offset, such as the "External-Biasing Fail-Safe Circuit" described in

                     AC coupled reference input

Thank you for the assistance.

[edited by: daedalus at 5:16 PM (GMT -5) on 2 Feb 2024]