Novel Voltage-Mode Active-Only Biquad with Two Integrator Loops

  • Tsukutani, Takao (Department of Electrical Engineering, Matsue National College of Technology) ;
  • Higashimura, Masami (Department of Electrical Engineering, Matsue National College of Technology) ;
  • Kinugasa, Yasutomo (Department of Electrical Engineering, Matsue National College of Technology) ;
  • Sumi, Yasuaki (Corporate R&D Department, Tottori SANYO Electric Co., Ltd.) ;
  • Fukui, Yutaka (Department of Electrical and Electronic Engineering, Faculty of Engineering, Tottori University)
  • 발행 : 2000.07.01

초록

This paper introduces a voltage-mode biquadratic circuit using only Operational Amplifiers (OTAs) and Operational Transconductance Amplifiers (OTAs). The proposed circuit can realize low-pass, band-pass, high-pass, band-stop and all-pass transfer functions by suitably choosing the input and output terminals. And the circuit characteristics can be electronically tuned through adjusting the transconductance gains of OTAs. Some examples are given together with simulated results by PSpice. The circuit configuration is very suitable for implementation in both bipolar and CMOS technologies.

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