Hi, pros

One more 18F2520 Out of use after 30 Hours of good work, like the others, and still the same AN2 ADC input leakage current tremendously increasing. ( I repeat here AN1 has EXACTLY the same input circuit : a LM335 fully filtered and clamped : a 10k resistor in series ...).

EVERYTHING has been carefully verified ... Even Microchip gurus didn't have anything to reply ...

another " damaged " circuit has been continuously running for more than a year ... all other analog inputs are still Ok !!!

Has anyone a little idea ???

Date Markings are 07204AY ...

Alain