Design and Implementation of High-Speed and High-Q Active Bandpass Filters with Reduced Sensitivity to Integrator Nonideality (Special Section on High-Speed Analog Circuits and Signal Processing)
スポンサーリンク
概要
- 論文の詳細を見る
An integratot is quite a suitable active element for high-speed filters. The effect of its excess phase shifts, however, is severe in the case of high-Q filter realization. The deterioration due to the excess phase shifts cannot be avoided when only integrators are used as frequency-dependent elements like in leapfrog realization. This paper describes a design of second-order high-speed and high-Q filters with low sensitivity to excess phase shifts of integrators by adding a passive RC circuit. The proposed method can drastically reduce the effect due to the undesirable pole of an integrator, which is the cause of the excess phase shifts, compared to conventional filters using only integrators. As an example, a fourth-order bandpass filter with 5-MHz center frequency and Q=25 is impelemented by the proposed method on a monolithic chip. The results obtained here show quite good agreement with the theoretical values. This demonstrates effectiveness of the proposed method and feasibility of high-speed and high-Q filters on a monolithic chip.
- 社団法人電子情報通信学会の論文
- 1993-02-25
著者
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Hiwatashi Kazuyuki
秋田県農林水産技術センター総合食品研究所
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FUJII Nobuo
the Department of Physical Electronics, Tokyo Institute of Technology
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Sato T
Tokyo Inst. Technol. Tokyo Jpn
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Hori Kazuyuki
the Central Research Laboratory,Hitachi, Ltd.,
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Takagi Shigetaka
the International Cooperation Center for Science and Technology, Tokyo Institute of Technology
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Sato Tetsuo
the Semiconductor Design & Development Center, Hitachi, Ltd.,
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Nishihara Akinori
the Department of Physical Electronics, the Engineering, Tokyo Institute of Technology
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Yanagisawa Takeshi
the Department of Electronic Information Systems, Shibaura Institute of Technology
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Hori K
Kao Co. Ltd. Tochigi Jpn
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Hori Kazuyuki
The Central Research Laboratory Hitachi Ltd.
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Yanagisawa T
Shibaura Inst. Technol. Omiya‐shi Jpn
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Kojima Hiroaki
R&d Co. Kobayashi Pharmaceutical Co. Ltd.
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Hata K
Akita Research Institute Of Food And Brewing
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Kojima Hiroaki
Kobayashi Pharmaceutical Co. Ltd. R&d Company
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Takagi Shigetaka
The International Cooperation Center For Science And Technology Tokyo Institute Of Technology
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Nishihara Akinori
The Department Of Physical Electronics The Engineering Tokyo Institute Of Technology
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Yanagisawa Takeshi
The Department Of Electronic Information Systems Shibaura Institute Of Technology
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Fujii Nobuo
The Department Of Physical Electronics Faculty Of Engineering Tokyo Institute Of Technology
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Fujii Nobuo
The Department Of Physical Electronics The Engineering Tokyo Institute Of Technology
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