[sdiy] Digital potentiometers?

[Jean-Pierre Desrochers]

I used 1 meg I2C dig pots from Analog Devices with
good results for my MIDI interface.
I used them for portamento effect between CV opamp stages.

The part is
AD5242 i2C 1meg digital pot
But you must work between 0-5v range !

See the following schemo: 
http://membre.oricom.ca/jpdesroc/projets/Modular/MIDI_Interface/Schematics%20and%20PCBs/m100%20midi%20interface%20schematic%20page%202.pdf

Or this complete post on the MIDI interfrace
http://dropmix.xs4all.nl/pipermail/synth-diy/2010-April/024580.html

JP

--------------------------------------------------------------------------------------
 On Thu 06/05/10 15:09 , Ian Smith taciturn_unquiet at hotmail.com sent:
> 
> Hey all,
> 
> I was poking around the Microchip website while I was waiting for MPLAB to
> download and I stumbled across their digital potentiometers. They sound
> like a good thing for digitally controlling analog circuits and for patch
> storage of said analog circuits.
> Thoughts? Feelings? Am I saying something that's been beaten to death
> already?
> -Ian
> 
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