Oh yes, the 2 was a typo.
Hmm so you mean that I should build this up with a 12M7 and a 100K +-
10K fixes resistor trim pot combination, write the simpler sampling
routine, and finally correct the 1V linearity error by changing the
divider's ratio with the trim pot?
Jens
threeneurons schrieb:
not 1024 but a 1023,
resulting in 20 * 1023 / 64 = 219.7V,
Actually its 319.7, instead of 320V, which is better than those 1%
resistors will give you. That's whats the trim pot is for.
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