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AD4020 in single-ended operation

Recently got my EVAL-AD4020FMCZ. Want to use AD4020 for single-ended conversions within [0...+5] V, but i'm not sure if i can make it without using ADA4940 or similar.

What is the reason analog inputs beeing pulling up to midscale value of reference voltage?

Can i make schematics for single-ended conversions like in picture below?

Added a tag for internal tracking purposes.
[edited by: tschmitt at 6:57 PM (GMT -5) on 2 Feb 2021]