Thank you Osgeld for clarification. I was confused after seeing this post about analog/ digital ground planes.
I have a design that also calls for two separate 5v supplies.
QuoteI have a design that also calls for two separate 5v supplies.You have to ask yourself why.Normally a good bit of decoupling will be enough for you to use the same supply.
The data sheet for my external ADC says the best design scheme is to power AVdd and DVdd with two separate supplies.