A transconductance enhancement technique for bulk-driven OTAs working in weak inversion

DOI Web Site 被引用文献1件 参考文献9件
  • Cheng Shuangshuang
    School of Geophysics and Information Technology, China University of Geosciences (Beijing)
  • Zhang Qisheng
    School of Geophysics and Information Technology, China University of Geosciences (Beijing) Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education
  • Zhao Xiao
    School of Geophysics and Information Technology, China University of Geosciences (Beijing)

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説明

<p>A proposed transconductance enhancement technique for bulk-driven OTAs working in weak inversion is presented in this paper. The basic idea is to use a bulk-driven input differential pair employing the auxiliary amplifier and positive feedback technique to enhance transconductance, which improves the enhancement ratio of transconductance from (n + 1)/(n − 1) to (n + 2)/(n − 1). The proposed amplifier based on the mentioned technique is simulated on UMC 180 nm process with the help of Spectre. The simulation results demonstrate that the transconductance of the bulk-driven OTAs working in weak inversion improves almost 50% with just a little increased power consumption compared to the conventional counterparts.</p>

収録刊行物

  • IEICE Electronics Express

    IEICE Electronics Express 13 (14), 20160475-20160475, 2016

    一般社団法人 電子情報通信学会

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