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Webench bandpass filter topology error

Larry Tichauer
Prodigy 10 points

I went into Webench to design an bandpass filter.  The resultant design had proper cut off frequencies but the topology that was supposed to be a high pass filter was shown as a low pass filter.  All 4 sections of the filter were low pass.   I have attached the file.  Please advise.

webench_design_1789249_1_123991927.pdf

  • 0
    TI__Guru* 93105 points

    Hi Larry,

    I looked over the filter that Webench Filter Designer produced for you and it does consist of four band-pass sections. To double check I entered your filter requirements in our older FilterPro tooll and it produced exactly the same filter. I simulated the circuit using TINA TI and the band-pass response was correct.

    Regards, Thomas

    PA - Linear Applications Engineering