1_kHz_BANDPASS_NOTCH

Published:2009/7/3 2:54:00 Author:May | From:SeekIC

Biquad filter uses all four sections of LM324 quad differential-input opamp to provide choice of bandpass and notch outputs. Supply voltage range can be 3-32 v, with reference voltage equal to half of supply value used. For center frequency of 1 kHz,R is 160K, C is 0.001 μF, and R1-R3 are 1.6 megohms,Coupling capactions C1 can be 10 times value used for C.- Low Power Operational mplifiers, Motorola,Phoenix,AZ,1978,DS9339 R1.



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