DAC resolution / availability

[jbv]

jorgen.bergfors at idg.se :

> >I dont think this is the cheapest way to make a DAC, if you need 12 bit
> >accuracy, or even 8.... think about the precision resistors you would >need.... unless
> >you have
> >laser trimming facilities at home...
>
> You don't need laser trimming. You just need a good DVM, a 200-roll of resistors and some patience.
> With 1% metal film resistors, you can normally find 10 resistors out of 200, that are within 1 count on a 4 1/2 digit DVM. That is my experience.

That is mine too.

jbv