D/A resolution ( was Tempco )

Ingo Debus debus at cww.de
Fri May 15 09:30:02 CEST 1998


Brian Towles wrote:
> The D/A might only have a 1Hz resolution, but by modulating the output
> between an index and the index + 1, your output voltage would have an
> _average_ value between the index and the next index.

But don't we have the precision problem again? Usual D/As have a
differential nonlinearity of +/- 1/4...+/- 1/2 LSB. If you divide one
D/A LSB into 16 "fine" steps, you might get an error of several steps.

Ingo




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