PHASE_ERROR_TESTER

Published:2009/7/6 6:32:00 Author:May | From:SeekIC

Circuit reveals significant phase errors at relatively low frequencies, even for high-speed opamps. Technique applies to most opamps and almost any signal gain. Article gives operating instructions based on observation of null with XY CRO connected to phase-error test output.-R. A. Pease, Technique Trims Op-Amp Amplifiers for Low Phase Shift, EDN Magazine, Aug. 20, 1977, p 138.



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