Compact Two-Stage Class-AB CMOS OTA for Low-Voltage Filtering Applications(Electronic Circuits)

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概要

• 論文の詳細を見る

• A compact OTA suitable for low-voltage active-RC and MOSFET-C filters is presented. The input stage of the OTA utilises the resistive tail-biased differential amplifier and the output stage relies upon the feed-forward class AB technique with common-mode rejection capability that incurs no penalty on transconductance/bias-current efficiency. Analysis on the achievable peak voltage swing of the OTA when employed in filters is given. Simulation results of a 0.5-V 100-kHz elliptic 5th-order filter based on the OTA's in a 2-V 0.18μm CMOS process indicate the differential peak voltage as large as 0.42V_p (84% of the supply voltage) at 1% THD with the SFDR of 60dB and the total power consumption of 50μW.

• 社団法人電子情報通信学会の論文
• 2007-02-01

著者

• WORAPISHET Apisak

  Mahanakorn Microelectronics Research Centre, Mahanakorn University of Technology

• KHUMSAT Phanumas

  Department of Electrical Engineering, Faculty of Engineering, Prince of Songkla University

• Khumsat Phanumas

  Prince Of Songkla Univ. Songkhla Tha

• Khumsat Phanumas

  Department Of Electrical Engineering Faculty Of Engineering Prince Of Songkla University

• Worapishet Apisak

  Mahanakorn Microelectronic Research Centre Mahanakorn University Of Technology

• Worapishet Apisak

  Mahanakorn Microelectronic Research Center (mmrc) Mahanakorn University Of Technology

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