The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta o modo biquad de corrente usando múltiplos amplificadores de transcondutância operacional (OTAs) de saída de corrente e capacitores aterrados. A configuração do circuito é obtida a partir de uma estrutura de loop integrador de segunda ordem com integradores sem perdas e com perdas. O circuito proposto pode realizar funções de transferência passa-baixa, passa-banda, passa-alta, parada de banda e passa-tudo, escolhendo adequadamente os terminais de entrada e saída. E as características do circuito podem ser ajustadas eletronicamente através do ajuste dos ganhos de transcondutância dos OTAs. Também fica claro que o circuito proposto possui sensibilidades muito baixas em relação aos elementos ativos e passivos do circuito. Um exemplo é dado juntamente com resultados simulados pelo PSpice.
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Takao TSUKUTANI, Masami HIGASHIMURA, Yasuaki SUMI, Yutaka FUKUI, "Electronically Tunable Current-Mode Biquad Using OTAs and Grounded Capacitors" in IEICE TRANSACTIONS on Fundamentals,
vol. E84-A, no. 10, pp. 2595-2599, October 2001, doi: .
Abstract: This paper introduces current-mode biquad using multiple current output operational transconductance amplifiers (OTAs) and grounded capacitors. The circuit configuration is obtained from a second-order integrator loop structure with loss-less and lossy integrators. 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. It is also made clear that the proposed circuit has very low sensitivities with respect to the circuit active and passive elements. An example is given together with simulated results by PSpice.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e84-a_10_2595/_p
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@ARTICLE{e84-a_10_2595,
author={Takao TSUKUTANI, Masami HIGASHIMURA, Yasuaki SUMI, Yutaka FUKUI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Electronically Tunable Current-Mode Biquad Using OTAs and Grounded Capacitors},
year={2001},
volume={E84-A},
number={10},
pages={2595-2599},
abstract={This paper introduces current-mode biquad using multiple current output operational transconductance amplifiers (OTAs) and grounded capacitors. The circuit configuration is obtained from a second-order integrator loop structure with loss-less and lossy integrators. 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. It is also made clear that the proposed circuit has very low sensitivities with respect to the circuit active and passive elements. An example is given together with simulated results by PSpice.},
keywords={},
doi={},
ISSN={},
month={October},}
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TY - JOUR
TI - Electronically Tunable Current-Mode Biquad Using OTAs and Grounded Capacitors
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2595
EP - 2599
AU - Takao TSUKUTANI
AU - Masami HIGASHIMURA
AU - Yasuaki SUMI
AU - Yutaka FUKUI
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E84-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 2001
AB - This paper introduces current-mode biquad using multiple current output operational transconductance amplifiers (OTAs) and grounded capacitors. The circuit configuration is obtained from a second-order integrator loop structure with loss-less and lossy integrators. 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. It is also made clear that the proposed circuit has very low sensitivities with respect to the circuit active and passive elements. An example is given together with simulated results by PSpice.
ER -