Bandwidth and Slew Rate Enhanced OTA With Sustainable Dynamic Bias
Publication in refereed journal

香港中文大學研究人員
替代計量分析
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其它資訊
摘要A bandwidth and slew rate (SR) enhanced operational transconductance amplifier (OTA) with proposed sustainable dynamic bias, transient detector and passive on-chip high-pass filter is presented in this brief. The proposed design is able to detect large-signal applied to the input of the amplifier and dynamically adjust its bias current to enhance both unity-gain bandwidth (UGB) and SR at the same time to achieve fast-settling behavior without overshoot and undershoot, along with high immunity against variations of supply voltage and bias current. Fabricated with a commercial 130-nm CMOS technology, the proposed design is verified by measurements that it is able to increase its SR by over 15 times, with more than 7.5 times reduction in its power consumption to attain fast settling time compared with a conventional design. Design considerations and an architectural comparison of the proposed design with another design with a different approach are also included in this brief to verify its performance and viability.
著者Hung CH, Zheng YQ, Guo JP, Leung KN
期刊名稱IEEE Transactions on Circuits and Systems II: Express Briefs
出版年份2020
月份4
卷號67
期次4
出版社IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
頁次635 - 639
國際標準期刊號1549-7747
電子國際標準期刊號1558-3791
語言英式英語
關鍵詞Transient analysis, Detectors, Bandwidth, Manganese, Circuits and systems, Transconductance, Power demand, Amplifiers, analog integrated circuits, dynamic bias, settling, slew rate, transient, unity-gain bandwidth
Web of Science 學科類別Engineering, Electrical & Electronic;Engineering

上次更新時間 2020-26-10 於 00:04