Novel current-mode active-only biquad with loss-less and lossy integrators |
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| Authors: | Takao Tsukutani Yasutomo Kinugasa Yasuaki Sumi Masami Higashimura Yutaka Fukui |
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| Affiliation: | 1. Advanced Engineering Faculty of Electronic and Information Systems , Matsue National College of Technology , 14-4 Nishi-ikuma, Matsue, 690-8518 Japan;2. Department of Information Systems , Faculty of Environmental and Information Studies, Tottori University of Environmental Studies , 1-1 Wakabadai-kita, Tottori, 689-1111 Japan;3. Department of Electrical and Electronic Engineering , Faculty of Engineering, Tottori University , 4-101 Koyama, Tottori, 680-8552 Japan |
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| Abstract: | ![]()
This paper presents a realization of a current-mode active-only biquad with a two-integrator loop structure. The proposed circuit is constructed solely with operational amplifiers (OAs) and operational transconductance amplifiers (OTAs). The circuit can realize low-pass, band-pass, high-pass, band-stop and all-pass transfer functions, and the circuit characteristics can be electronically tuned by adjusting the transconductance gains of the OTAs. An example is 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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