The AD7893-2 converter has a specification on the bottom of the second page of the datasheet giving a Vdd of 5V, and under comments says "+/-5% for specified performance."
I am curious what performance degrades when the part is ran outside…
Davidforde should be able to help you for the ADG1411.
For the AD7893, kindly start a new thread in the Precision ADC community.
All part numbers can be found on sample and buy section
Probably the exact part number for what you want is AD7893BRZ-5.
对于ADC 12bit 8pin脚的产品，您可以考虑AD7893、AD7895（但是这两款都是外部参考）；AD7896是内部参考。
Thanks a lot for your information about AD4003+LTM2893.
Could you have any information about whether AD7983 is compatible with the LTM2893, i am considering using AD7983 with LTM2893 because i have used AD7983 in my prototype design.