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Subject: PCB problems please help

Date: 11/26/01 at 6:27 PM
Posted by: Darren
E-mail: darren@guartel.com
Message Posted:

I have a detector circuit that amplifies very small changes in a dc signal. The circuit works for about 30 secs and then the opamp amplifier output starts to fall slowly. It slowly falls untill it hits 0V. The circuit works on a different PCB, but I have tried to shrink it down to minimum size. I have used both sides for SMD components. Please help as it is driving me mad.


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