ODP: DAC resolution / availability

[Roman Sowa]

That's just what I said. Or maybe I didn't express myself clearly.

Anyway,
according to expensive resistors in home-made DACs, whenever
I did such thing, I used one value 1% SMD resistors (paralel or serial
connection to get R-2R) on tape, and almost all of them mathed
better than I could measure with 3.5 digit DMM. These were strange
round devices; flat 1206 don't seem to be so acurate though.
But I wouldn do it again for a dac bigger than 6-bit.

Roman

> -----Oryginalna wiadomość-----
> Od:	Gene Zumchak [SMTP:zumchak at cerg.com]
> Wysłano:	17 marca 1999 19:27
> Do:	Roman Sowa
> DW:	Synth-DIY
> Temat:	Re: ODP: DAC resolution / availability
> 
> List,
> 
>     If you are going to use fewer than all of the bits of the DAC, use the
> most significatnt ones, as these are the ones that have to be most
> accurate in
> order to get the best accuracy.
> 
> Gene
> 
> Roman Sowa wrote:
> 
> > Yes, but you can configure it both ways.
> > There's one pin (don't remember its name) to do it.
> > So you can have upper 8 bits in one word and remaining 4 in the other,
> > or if you wish, upper 4 bits in one word and the rest in the other.
> >
> > Roman
> >
>