The PIC won't go that high, but it would be very easy to scale the
voltage to something like 0-5V with op amps.  Can someone help with the
resisto values?  My analog is rsty without digging a book out.

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