> > Ah, so you mean the interval starting at 000 is the 1st, starting at
> > 001 is the 2nd, therefore the 1024th interval starts at 3ff. That
> > corresponds with what Gerhard quoted

Steps always = levels-1, but steps aren't important.
There are 4096 levels, so 1mV/level with a 4.096V reference.
That's why those refs are made at those otherwise rather goofy voltages.
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist