New fully differential HF CMOS op amp's with efficient common mode feedback

Chung-Yu Wu*, Ping Hsing Lu, Chien Hsiung Lee, Ming Kai Tsai

*此作品的通信作者

    研究成果: Conference article同行評審

    1 引文 斯高帕斯(Scopus)

    摘要

    Conventional fully differential HF CMOS operational amplifiers (op amps) use an extra circuit to perform common-mode feedback (CMFB), which results in signal distortion and/or asymmetry as the signal swing increases. To solve this problem, two fully differential CMOS op amps that are based on merging two single-ended-output op amps are proposed and analyzed. Through the inherent differential-to-single-ended conversion circuitry, CMFB can be efficiently performed without extra circuits. The output signals are not distorted, and the HF performance is not degraded. Simulation and experimental results have confirmed the performance of the proposed new op amps.

    原文English
    頁(從 - 到)2076-2079
    頁數4
    期刊Proceedings - IEEE International Symposium on Circuits and Systems
    3
    DOIs
    出版狀態Published - 1 12月 1989
    事件IEEE International Symposium on Circuits and Systems 1989, the 22nd ISCAS. Part 1 - Portland, OR, USA
    持續時間: 8 5月 198911 5月 1989

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