Subject: Re: Digital pots - any pin for pin equivalents?
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Date: Tue, 03 Sep 2002 18:58:07 GMT
NNTP-Posting-Date: Tue, 03 Sep 2002 20:58:07 CEST
Organization: Telia Internet
I've been working with digipots from Dallas, Xicor and Catalyst. They differ
from one another by interface, pinout etc. I don't know if there is a
"standard" or something like it. Anyway I found the Xicor pots to be very
good ones. They have I2C like, SPI and Up/Down interfaces. Easy to implement
and lots of appnotes. However, this is my very personal opinion and shound't
be taken as the answer you perhaps expects.
Best regards, RA
Malcolm Reeves wrote in message
> Any one know of any pin for pin equivalents in the digital pot market.
> Or put it another way, what are the "standard" parts?
> I have done a search for 256 tap, dual pot (I'm flexible on this BTW)
> and found quite a few manufacturer's AD, Dallas, Xicor, MicroChip.
> Functionally they all seem the same, but the pin outs are all
> different! Is this deliberate or what.
> Malcolm Reeves BSc CEng MIEE MIRSE, Full Circuit Ltd, Chippenham, UK
> (firstname.lastname@example.org, email@example.com or firstname.lastname@example.org).
> Design Service for Analogue/Digital H/W & S/W Railway Signalling and
> electronics. More details plus freeware, Win95/98 DUN and Pspice tips,
> http://www.fullcircuit.com or http://www.fullcircuit.co.uk
> NEW - VHDL test bench tool