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
IC에 대한 저전압 기술은 가장 중요한 문제 중 하나를 얻고 있습니다. 트랜지스터의 베이스-이미터 전압을 거의 낮추지 못하기 때문에 1V 이하에서 작동할 수 있는 필터를 구현하는 것은 매우 어렵습니다. 본 논문에서는 저전압 연속시간 필터의 설계를 제시합니다. 필터의 기본 구성 요소는 테일 전류 소스가 없는 유사 차동 트랜스컨덕터입니다. 따라서 작동 전압은 이미터 결합 쌍의 작동 전압보다 낮습니다. 그러나 트랜스컨덕터의 공통 모드(CM) 이득은 상당히 높고 CMRR은 낮습니다. CM 게인을 줄이기 위해 CM 피드백 회로가 사용됩니다. 상호컨덕턴스 특성은 쌍곡선 코사인의 함수로 표현됩니다. 설계된 필터는 XNUMX차 자이레이터입니다.C 필터. 1차 버터워스 저역통과 특성을 갖는 트랜스컨덕터와 필터는 PSpice 시뮬레이션을 통해 시연됩니다. 시뮬레이션을 통해 트랜스컨덕턴스 특성, CMRR 및 트랜스컨덕터의 안정성을 확인합니다. 필터 분석에서는 주파수 응답과 오프셋 전압을 조사합니다. 메가헤르츠 정도의 코너 주파수를 갖는 필터는 XNUMXV 공급 전압에서 작동할 수 있는 것으로 나타났습니다.
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부
Fujihiko MATSUMOTO, Yasuaki NOGUCHI, "A 1-V Continuous-Time Filter Using Bipolar Pseudo-Differential Transconductors" in IEICE TRANSACTIONS on Fundamentals,
vol. E82-A, no. 6, pp. 973-980, June 1999, doi: .
Abstract: Low-voltage technique for IC is getting one of the most important matters. It is quite difficult to realize a filter which can operate at 1 V or less because the base-emitter voltage of transistors can hardly be reduced. A design of a low-voltage continuous-time filter is presented in this paper. The basic building block of the filter is a pseudo-differential transconductor which has no tail current source. Therefore, the operating voltage is lower than that of an emitter-coupled pair. However, the common-mode (CM) gain of the transconductor is quite high and the CMRR is low. In order to reduce the CM gain, a CM feedback circuit is employed. The transconductance characteristic is expressed as the function of hyperbolic cosine. The designed filter is a fifth-order gyrator-C filter. The transconductor and the filter which has a fifth-order Butterworth lowpass characteristic are demonstrated by PSpice simulation. Transconductance characteristic, CMRR and stability of the transconductor are confirmed through the simulation. In the analysis of the filter, frequency response and offset voltage are examined. It is shown that the filter which has corner frequency of the order of megahertz can operate at a 1 V supply voltage.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e82-a_6_973/_p
부
@ARTICLE{e82-a_6_973,
author={Fujihiko MATSUMOTO, Yasuaki NOGUCHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A 1-V Continuous-Time Filter Using Bipolar Pseudo-Differential Transconductors},
year={1999},
volume={E82-A},
number={6},
pages={973-980},
abstract={Low-voltage technique for IC is getting one of the most important matters. It is quite difficult to realize a filter which can operate at 1 V or less because the base-emitter voltage of transistors can hardly be reduced. A design of a low-voltage continuous-time filter is presented in this paper. The basic building block of the filter is a pseudo-differential transconductor which has no tail current source. Therefore, the operating voltage is lower than that of an emitter-coupled pair. However, the common-mode (CM) gain of the transconductor is quite high and the CMRR is low. In order to reduce the CM gain, a CM feedback circuit is employed. The transconductance characteristic is expressed as the function of hyperbolic cosine. The designed filter is a fifth-order gyrator-C filter. The transconductor and the filter which has a fifth-order Butterworth lowpass characteristic are demonstrated by PSpice simulation. Transconductance characteristic, CMRR and stability of the transconductor are confirmed through the simulation. In the analysis of the filter, frequency response and offset voltage are examined. It is shown that the filter which has corner frequency of the order of megahertz can operate at a 1 V supply voltage.},
keywords={},
doi={},
ISSN={},
month={June},}
부
TY - JOUR
TI - A 1-V Continuous-Time Filter Using Bipolar Pseudo-Differential Transconductors
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 973
EP - 980
AU - Fujihiko MATSUMOTO
AU - Yasuaki NOGUCHI
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E82-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 1999
AB - Low-voltage technique for IC is getting one of the most important matters. It is quite difficult to realize a filter which can operate at 1 V or less because the base-emitter voltage of transistors can hardly be reduced. A design of a low-voltage continuous-time filter is presented in this paper. The basic building block of the filter is a pseudo-differential transconductor which has no tail current source. Therefore, the operating voltage is lower than that of an emitter-coupled pair. However, the common-mode (CM) gain of the transconductor is quite high and the CMRR is low. In order to reduce the CM gain, a CM feedback circuit is employed. The transconductance characteristic is expressed as the function of hyperbolic cosine. The designed filter is a fifth-order gyrator-C filter. The transconductor and the filter which has a fifth-order Butterworth lowpass characteristic are demonstrated by PSpice simulation. Transconductance characteristic, CMRR and stability of the transconductor are confirmed through the simulation. In the analysis of the filter, frequency response and offset voltage are examined. It is shown that the filter which has corner frequency of the order of megahertz can operate at a 1 V supply voltage.
ER -