Author： Tsukutani Takao Ishida Masaru Tsuiki Sumio Fukui Yutaka
Publisher： Taylor & Francis Ltd
ISSN： 1362-3060
Source： International Journal of Electronics, Vol.80, Iss.4, 1996-04, pp. : 533-541
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Abstract
A current-mode biquadratic filter is introduced using multiple current output Operational Transconductance Amplifiers (OTAs). The circuit configuration has been constructed employing current-mode integrators and a proportional block as basic building units. It is shown that the proposed circuit can realize five di erent biquadratic transfer functions simultaneouslywithout changing the circuit topology. The e ects of OTA non-idealities on the filter characteristics are also discussed. An example is given together with results simulated with PSpice.
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