Transconductor and integrator circuits for integrated bipolar video frequency filters

W.J.A. de Heij, Evert Seevinck, K. Hoen

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    A description is presented of novel transconductor and integrator circuits which can be used in integrated video frequency filters in bipolar technology. The transconductor consists of a parallel connection of a passive nominal transconductance and an active variable transconductance, resulting in good high-frequency performance up to 70 MHz and less than 1% linearity error for input signals up to 2V pp. The integrator incorporates an operation transconductance amplifier circuit which provides a tunable integrator phase. Simulation results for all circuits and for a fifth-order elliptic low-pass filter with a nominal cutoff frequency of 5 MHz are presented
    Original languageUndefined
    Publication statusPublished - 1989
    EventIEEE International Symposium on Circuits and Systems, ISCAS 1989 - Portland, OR, USA
    Duration: 8 May 198911 May 1989


    ConferenceIEEE International Symposium on Circuits and Systems, ISCAS 1989
    Other8-11 May 1989


    • IR-56101

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