A 5.5MHz CMOS low-pass filter using a 'soft-switched' transconductor

Clemens H.J. Mensink, Clemens Mensink, Bram Nauta, Hans Wallinga

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    A new transconductor has been used to implement a third-order 5.5MHz low-pass Bessel filter with extra notch. The filter was realised in 0.5 µm double poly N-well CMOS process. At a 3.3V supply voltage the filter dissipates 12mW and the dynamic range equals 62dB where the THD is-50dB for an input voltage of IVpp. The continuously tuneable transconductor is based on 'soft-switching' of resistors. The converter performance is only determined by the first order characteristics of the transistor. Due to reduced sensitivity for the second order effects of the transistors the converter is well suitable in modern and future sub-micron CMOS processes.
    Original languageEnglish
    Title of host publicationESSCIRC '96: proceedings of the 22nd European Solid-State Circuits Conference, 1996
    Place of PublicationPiscataway, NJ, USA
    ISBN (Print)2-86332-197-8
    Publication statusPublished - 17 Sep 1996
    Event22nd European Solid-State Circuits Conference, ESSCIRC 1996 - Neuchatel, Switzerland
    Duration: 17 Sep 199619 Sep 1996
    Conference number: 22

    Publication series



    Conference22nd European Solid-State Circuits Conference, ESSCIRC 1996
    Abbreviated titleESSCIRC


    • IR-15954
    • METIS-112836

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