Re: PCB layout for ADC

Andrew Holme wrote:
Linear Technology have an interesting application note AN71 entitled "The care and feeding of high performance ADCs: Get all the bits you paid for" which addresses the issues you mentioned. Google for: linear technology an71

That's a good pointer and a nice little appnote - short and to
the point. I had a question about their recommendation that you
can benefit from using both an analog and a digital ground plane
on two separate layers.

Wouldn't the capacitive coupling stuff things up?

Also re someone's suggestion of using an inductor to couple the
two planes. Is this a good idea in the layout LT show, and what
inductance might you be looking for?
.