Second-order active band stop filter circuit

  
Band-stop filter (BEF) integrated operational amplifier, such electrical road performance and a bandpass filter contrary, that in a certain band, the signal can not be (or has
Second-order active band stop filter circuit - schematic

been greatly attenuated or suppressed), while in the remaining frequency Fan Wai, signals can be passed. After two-plus network level T-phase ratio arithmetic circuit, it constitutes the basic second-order active band-stop filter BEF. Band stop filter as shown in FIG. FIG integrated operational amplifier AJ dual op amp




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