Quantasizing Formula

[Darrel Taylor]

Here's a different way to do it that should be a little more accurate.

https://www.picbasic.co.uk/forum/showthread.php?p=2010

Just change the Res1 and Res2 variables to match your voltage divider.
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[LLEEDD]

Here's a different way to do it that should be a little more accurate.

https://www.picbasic.co.uk/forum/showthread.php?p=2010

Just change the Res1 and Res2 variables to match your voltage divider.
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Thank you for the help,
I tested his/her program but it presents the same problems of mine. With the increase of the tension of the source, 0-25V, the mistake is going increasing, that it begins with 1mV for 10V of the source and it arrives to 8mV with 24V of the source.

Thank you,
LLEEDD

[Ioannis]

Hmmm, I don't see how you can be more accurate since:

1. For 8bit ADC, each step is 25/255=0.098 Volts

2. For 10bit ADC, each step is 25/1023=0.0244 Volts.

May be you have to use an external ADC with more resolution.

Ioannis