http://www.xicor.com/products_xdcps.html


----- Original Message -----
From: "O'Reilly John E NORC" <OReillyJE@CORONA.NAVY.MIL>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, February 21, 2001 2:18 AM
Subject: Re: [EE]: Searching for Digital Potentiometer with high precision
/tolerance


> I love this list.  Just last week I was asking co-workers how I can have a
> circuit "remember" a voltage.  Anyway, where can I get digital pots?  And
> how much do they cost?  I searched Digi-Key and came up with nothing, and
> Microchip's buy.microchip.com doesn't have them.
>
> Thanks,
> John
>
> -----Original Message-----
> From: Tim Hamel [mailto:TekPhobia@AOL.COM]
> Sent: Saturday, February 17, 2001 7:17 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Searching for Digital Potentiometer with high
> precision/tolerance
>
>
> In a message dated 2/17/01 5:49:15 PM Pacific Standard Time,
> neil_gandler@GETMAI.COM writes:
>
> > I would like to use digital potentiometers for digital tuning of an
analog
> > filter, as an alternative to a noisy Switched Capacitor filter, or more
> > expensive and complex DSP solution. The problem with most Digital Pots,
is
> > that the end to end resistance tolerance is 20% of greater. I am
searching
> > for a digital potentiometer with precision resistance settings <1%. So a
> > setting of 12.4K would be 12.4K +/-1%. I would appreciate any leads.
> Thanks!
> >
>
> Why not check out Microchip's own digital pots.?  I believe their max
> tolerance is ~1% Here's a link:
>
> http://www.microchip.com/10/lit/pline/analog/anicateg/digipot/index.htm
>
> Regards,
>
> Tim Hamel
>
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