In the data sheet of AD7626 it is reccomeded to separate VDD2 and VIO.
please let me know that it is better to separate13pin (returnGND of VIO) from another GND or not better.
In the circuit of Eva board of AD7626 ,all GND are not separated
Having a common ground plane for the AD7626 is fine and would still achieve good performance.
We are looking into this. I'll get back to you soon.
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