Hi,

Thanks for the reply,

Yes I am wanting to use it on RA0. The voltage divider connects to the +110V DC line and ground (I am using 33K and 1K) the voltage measurement of 1-4.335V is the output I am getting from the voltage dvider when I vary the voltage from 20-110VDC. I am just looking at providing isolation between the PIC and 110V DC as I am scared of a nasty suprise. We have also tried using a variac to simulate the 110V DC using the same voltage divider but we have not tried that either on the PIC as we have not isolated it.