There are a lot of ways to do this (as with anything else). But, are you allowed to sacrifice amplifier performance? Adding additional circuitry to the output of your amp could significantly hinder its response. Also, must this circuit be powered from a single +5V rail? > Steven Kosmerchock wrote: > > > Friends, > > I have a project where I need to read an analog voltage of > > +7V-+18V. It is an internal power monitor of a RF amplifier. > > I am using it in a test fixture and was hoping of some way > > to read the voltage to know how many watts are at the > > output of the amp, without using a power meter. > > Does anybody know of an A/D converter that > > goes that high? Does the PICs internal A/D go that high? > > Any ideas?? Thanks in advance............................. > > > > Best regards, > > Steven > > > > Steven Kosmerchock > > Engineering Technician/Student > > CELWAVE > > Phoenix Arizona USA > > Email: steve.kosmerchock@celwave.com > > www.geocities.com/researchtriangle/lab/6584