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".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Neste artigo, são descritas novas técnicas de linearização para OTAs bipolares de baixa tensão usando circuitos de função hiperbólica. Primeiro, é proposto um projeto de um circuito de lei exponencial, que é um bloco de construção básico para compor circuitos hiperbólicos de seno e cosseno hiperbólico. Este circuito é mais simples que o circuito convencional e é adequado para aplicações de baixa tensão. A seguir, são apresentadas duas OTAs linearizadas utilizando os circuitos de função hiperbólica. A transcondutância é dada por aproximação maximamente plana. Embora os projetos dos OTAs sejam diferentes, as correntes de saída são dadas pela mesma expressão. Por fim, é discutido o desempenho das OTAs. A faixa de tensão de entrada linear dos OTAs propostos é quase a mesma da OTA convencional. No entanto, um dos OTA propostos não tem mais do que dois terços da dissipação de energia do convencional. O outro tem uma característica superior de alta frequência.
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Fujihiko MATSUMOTO, Yasuaki NOGUCHI, "Novel Low-Voltage Linear OTAs Employing Hyperbolic Function Circuits" in IEICE TRANSACTIONS on Fundamentals,
vol. E83-A, no. 6, pp. 956-964, June 2000, doi: .
Abstract: In this paper, new linearization techniques for low-voltage bipolar OTAs using hyperbolic function circuits are described. First, a design of an exponential-law circuit, which is a basic building block to compose hyperbolic sine and hyperbolic cosine circuits, is proposed. This circuit is simpler than the conventional circuit and is suitable for low-voltage application. Next, two linearized OTAs using the hyperbolic function circuits are presented. The transconductance is given by maximally flat approximation. Although designs of the OTAs are different, the output currents are given by the same expression. Finally, performance of the OTAs is discussed. The linear input voltage range of the proposed OTAs is almost the same as that of the conventional OTA. However, one of the proposed OTA has no more than two-thirds the power dissipation of the conventional one. The other has a superior high-frequency characteristic.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e83-a_6_956/_p
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@ARTICLE{e83-a_6_956,
author={Fujihiko MATSUMOTO, Yasuaki NOGUCHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Novel Low-Voltage Linear OTAs Employing Hyperbolic Function Circuits},
year={2000},
volume={E83-A},
number={6},
pages={956-964},
abstract={In this paper, new linearization techniques for low-voltage bipolar OTAs using hyperbolic function circuits are described. First, a design of an exponential-law circuit, which is a basic building block to compose hyperbolic sine and hyperbolic cosine circuits, is proposed. This circuit is simpler than the conventional circuit and is suitable for low-voltage application. Next, two linearized OTAs using the hyperbolic function circuits are presented. The transconductance is given by maximally flat approximation. Although designs of the OTAs are different, the output currents are given by the same expression. Finally, performance of the OTAs is discussed. The linear input voltage range of the proposed OTAs is almost the same as that of the conventional OTA. However, one of the proposed OTA has no more than two-thirds the power dissipation of the conventional one. The other has a superior high-frequency characteristic.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Novel Low-Voltage Linear OTAs Employing Hyperbolic Function Circuits
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 956
EP - 964
AU - Fujihiko MATSUMOTO
AU - Yasuaki NOGUCHI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E83-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2000
AB - In this paper, new linearization techniques for low-voltage bipolar OTAs using hyperbolic function circuits are described. First, a design of an exponential-law circuit, which is a basic building block to compose hyperbolic sine and hyperbolic cosine circuits, is proposed. This circuit is simpler than the conventional circuit and is suitable for low-voltage application. Next, two linearized OTAs using the hyperbolic function circuits are presented. The transconductance is given by maximally flat approximation. Although designs of the OTAs are different, the output currents are given by the same expression. Finally, performance of the OTAs is discussed. The linear input voltage range of the proposed OTAs is almost the same as that of the conventional OTA. However, one of the proposed OTA has no more than two-thirds the power dissipation of the conventional one. The other has a superior high-frequency characteristic.
ER -