A Method to Improve CMRR for CMOS Operational Amplifier by Using Feedforward Technique (Special Section on Analog Circuit Techniques for System-on-Chip Integration)
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概要
- 論文の詳細を見る
In this paper, two types of improved CMRR CMOS OAs, N type and P type, without common-mode feedback and the cascode current mirrors, are proposed. The CMRR of proposed OAs are enhanced by compensating variations in tail bias current, caused by a common mode input signal, at the differential input stage, by means of feedforward controlled current source. Simulation results show that the CMRR of the proposed OAs are 20dB higher than that of conventional OAs.
- 社団法人電子情報通信学会の論文
- 1997-02-25
著者
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HYOGO Akira
Faculty of Science and Technology, Tokyo University of Science
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SEKINE Keitaro
Faculty of Science and Technology, Tokyo University of Science
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Hyogo A
Tokyo Univ. Sci. Noda‐shi Jpn
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Hyogo Akira
Department Of Electrical Engineering Faculty Of Science And Technology Science University Of Tokyo
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Hyogo Akira
The Faculty Of Science And Technology Science University Of Tokyo
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Hyogo Akira
Faculty Of Science And Technology Science University Of Tokyo
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Sekine K
Tokyo Univ. Sci. Noda‐shi Jpn
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Sekine Keitaro
Department Of Electrical Engineering Faculty Of Science And Technology Science University Of Tokyo
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Sekine Keitaro
The Faculty Of Science And Technology Science University Of Tokyo
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Sekine Keitaro
Faculty Of Science And Technology Okyo University Of Science
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Ibaragi Eitake
The Department Of Electrical Engineering Science University Of Tokyo
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IBARAGI Eitake
Faculty of Science and Technology, Science University of Tokyo
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