Hi Jonathan
Thank you very much for prompt support.
ADG3300 VIHA is VccA-0.4V min, so that means 2.1V @ Vdrive=2.5V.
But AD7762 VOH is 1.5V min.
I don't know that is able to connectivity guarantee.
On a separate note, ADG3300 VIHY and VILY are strange specification. (rev0)
AD7760 VOH is 1.5V, but that condition is Vdrive is 1.65V. (revA)
The condition of AD7762 VOH is Vdrive=2.5V ?
(Might it be a typo?)
Thank you for your support.
Regards
moto