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
Dans cet article, de nouvelles techniques de linéarisation pour les OTA bipolaires basse tension utilisant des circuits à fonction hyperbolique sont décrites. Tout d’abord, une conception d’un circuit à loi exponentielle, qui est un élément de base pour composer des circuits sinus hyperboliques et cosinus hyperboliques, est proposée. Ce circuit est plus simple que le circuit conventionnel et convient aux applications basse tension. Ensuite, deux OTA linéarisés utilisant les circuits de fonctions hyperboliques sont présentés. La transconductance est donnée par une approximation maximalement plate. Bien que les conceptions des OTA soient différentes, les courants de sortie sont donnés par la même expression. Enfin, les performances des OTA sont discutées. La plage de tension d'entrée linéaire des OTA proposés est presque la même que celle de l'OTA conventionnel. Cependant, l’un des OTA proposés n’a pas plus des deux tiers de la dissipation de puissance de l’OTA conventionnel. L'autre a une caractéristique haute fréquence supérieure.
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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 -