HI All, Hope you all have a very "entertaining " 2004 ;) Does anyone have an idea of how i can increase the sensitivity of a 10 bit A/D on a 12f675 ? In the old days with the 80c515/535 , we used to change the reference voltage after some basic measurements and then "squeeze" out a few more bits of precision. Another was to put a "dither" voltage onto the ADC pin, mixed with the signal being measured and then to average the readings. This also gave quite a nice result. Any miracles available ... with low pincount ? the result should hopefully have 12/14 bit resolution :) John -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body