I think you can find a more detailed explanation how to design a specific A/D converter using the Hopfield network

in the following report (thesis)

“VLSI Design of Adaptive Neural Systems” by Bang Won Lee May 1990

http://sipi.usc.edu/reports/pdfs/Scanned/USC-SIPI-152.pdf

Hello

Dear Friend 

Please see this links.

I hope be useful for you.

Best Regard

http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=34101&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel1%2F4%2F1419%2F00034101

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=34101

https://books.google.com/books?id=n0RYqCELd-IC&pg=PA319&lpg=PA319&dq=How+can+I+design+A/D+using+a+hopfield+network?&source=bl&ots=Q1wOw2OqEM&sig=2a6A25uDyXKVGsQB-zZTKoGK138&hl=en&sa=X&ei=xiajVIXQD8fwUrbMgsAL&ved=0CDUQ6AEwBQ#v=onepage&q=How%20can%20I%20design%20A%2FD%20using%20a%20hopfield%20network%3F&f=false

Article Design of a Neural-Based A/D Converter Using Modified Hopfield Network