Hi:

I have designed an AC voltmeter that measures an incoming rms volts from 0v
to 255V.  The AC signal is DC scaled from 0 to 5V filtered DC.  I have been
testing the system non stop for over than one month no problem.

Question:

1. What is the reliability of A/D round clock operation 365 days or more?
2.What are probable causes for A/D failures, have you had any A/D failed in
16C711
3.What happens when the voltmeter is tested in a very noisy harmonics
present signals, any suggestion on how to filter out these unwanted
signals.

Your comments will be greatly appreciated as always,


Norayr from
SES Electronics