Hello everyone!
I am using the 5 channel A/D on the PIC16C73A running at 5V.  I am using
an external voltage reference of 2.5V on pin RA3/AN3/Vref.  My question
is: Should I use a zener diode, etc. to protect the port from voltages
from 2.5V to Vdd+.6 or will this just give me a full scale reading?  Are
there any other thought on protecting A/D inputs?  Thanks in advance.
Steve McAlonan



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