At 12:10 PM 5/27/2005 -0400, you wrote:


>That's close enough for my application, but maybe not yours.  In
>that case, use a 4.096 or other value precision voltage
>regulator.

Or, if you have control over the power supply, consider using a better
regulator for Vdd, especially if there is not much else running off it.
1% and 0.5% tolerance regulators are easily available, and provide an
intermediate unadjusted accuracy option between a typical 5% supply and
a pricey +/-0.1% reference.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff



-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist