Precision Rectifier as published in AB-109 by James Wong. Performs poorly, High freq HF Oscillation found during alternate rectified cycle half cycles. Please share your experience.
A lot of app notes use a particular op amp, but don't say why it was selected. The circuit does work well,
but I would suspect:
-- You used a rail to rail output op amp
-- you tried to run it on single supply
-- you didn't have adequate bypass caps
-- you did not build it on a clean pc board.
If you can fill in details such as:
op amp type
actual schematic in pdf format
frequency and amplitude of oscillation,
Perhaps I could comment futher.
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