1__kHz_THREE_FUNCTION

Published:2009/7/2 8:42:00 Author:May | From:SeekIC

Three-function fixed-frequency active filter uses three sections of RCA CA3401E, Motorola MC33OlP, or National CA3401E quad opamp. Circuit uses highvalue series resistors for noninverting inputs to limit bias current to between 10 and 100,μA.-P. A. Lovelock, Discrete Operational Amplifier Active Filters, Ham Radio, Feb. 1978, p 70-73.



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