Digital Pots - any good application notes?

[carrotts]

Digital Pots

I am looking at replacing mechanical pots in a piece of test equipment with digital pots. I have had some success, but am limited by the range, and by the fact i need to isolate the signal through the pot from the dc supply for the pot. Anybody point me at some good application notes etc.

thanks

carrotts

 

[panalog9]

DigiPots

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http://www.xicor.com/folders/X9C103.php

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Lots of design guides/appnotes there. Google is your friend.