ad9625 & ads7-v2

Hi i need some help

I'm looking for a way to use AD9625 with ADS7-V2 board.

when i check this working. it is same to compare AD9625 and AD9680 in the schemetic.

FMC connector's pin all same so i think AD9625, maybe can use at ADS7

when i using AD9680 can work but AD9625 didn't work.

why AD9625 didn't work?