The page 8 of AD7091R-5 datasheet describes VDrive as "The voltage range on this pin is 1.8 V to 5.25 V and may differ from the voltage range at VDD, but must never exceed it by more than 0.3 V", however AD7091R does not have this limitation.  Could ADI confirm the VDrive limitation for AD7091R-5 is correct.

  • +1
    •  Analog Employees 
    on Feb 26, 2021 3:49 AM 1 month ago

    Yes. The voltage range on the VDRIVE pin on AD7091R-5 is from 1.8V to 5.25V. However, the voltage on the VDRIVE pin must never exceed the voltage on the VDD pin by more than 0.3V for ADR7091R-5.

    For the AD7091R, the voltage on the VDRIVE pin can be anywhere between 1.65V and 5.25V.