A Design of 1V CMOS-OTA with Wide Input Range : Spesial Section on High-Performance MOS Analog Circuits
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概要
- 論文の詳細を見る
OTA (Operational Transconductance Amplifier) is a useful circuit in analog signal processing systems, especially in high-frequency applications. Important features of OTA are: infinite input impedance, electrically changeable transconductance (Gm), and much wider operation range without negative feedback such as in OPamp applications. The good linearity of OTA over wide input range is necessary to extend the application fields of OTA. Several techniques are developed to extend the input range with good linearity. In this paper, a highly-linear COMS-OTA operating under 1V power supply, is proposed. The concept of the proposed OTA is based on class-AB operation of two n-channel MOSFETs in the saturation region. By improving the input stage circuits, wide input range can be achieved. SPICE simulations are performed to verify the performance of the proposed OTA.
- 社団法人電子情報通信学会の論文
- 1994-02-25
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 Akira
Faculty Of Science And Technology Science University Of Tokyo
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Sekine Keitaro
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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Toyota Kenji
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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