Cesar, (...) According to my book, you can set the reference voltages to anything from Vss to Vss + 6.0 V (notice that this is higher than Vdd). The A/D result is a ratioatic comparison for the sample voltage to the references. Page 48 of the (...) (26 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
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