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ACTIVE_FOURTH_ORDER_HIGH_PASS_FILTER_FOR_50_Hz

2017-02-13 14:02  
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ACTIVE_FOURTH_ORDER_HIGH_PASS_FILTER_FOR_50_Hz
This circuit which uses an LM1458 or similar op amp is a fourth-order high-pass filter with a 24 dB/octave roll-off The values of R1/R2,R3/R4,C1/C2,C3/C4 can be scaled to suit other cutofffre quencies