DAC resolution / availability

[Martin Czech]

>> 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.
> 
If you by them as "amunition belts", you'll most probably find out, that
in some local region of the belt you get 0.1% without any trouble.

m.c.