sheldon
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Vlado,
Never measured phase margin on the bench so it is a good question. Have you tried putting in a small square wave, need to avoid slew rate limiting, and looking at the overshoot? You should be able to infer phase margin from small signal overshoot. Don't remeber the formula for conversion, it is in most textbooks, Gray and Meyer and Allen.
Best Regards,
Art Schaldenbrand
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