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亞東學報

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篇名 高輸出擺幅摺疊式運算放大器之設計與實作
卷期 29
並列篇名 Design and implementation of High Output Swing Folded Cascode OP Amplifier
作者 李民慶王清松黃鈞毅陳琨元游育銘李霈穎
頁次 71-80
關鍵字 Phase MarginOutput SwingSlew RateUnit-gain BandwidthFolded Cascode Amplifier迴轉率單增益頻寬摺疊疊接放大器輸出擺幅相角邊限
出刊日期 200906

中文摘要

CMOS 運算放大器乃組成多數混合訊號積體電路之核心單元 ,本文針對設計組成一高性能OPA
之基本單元:參考偏壓電流源電路,輸入差動放大器與源級退化之共源極放大器之設計考量加以分析,最後利用 TSMC-0.35um CMOS 製程技術完成模擬與設計ㄧ具高輸出擺幅(3.2V)、高單增益頻寬14.6MHz)、高共模拒斥比(92dB)、高電源漣波拒斥比(90dB)與高迴轉率(14.85V/us)等操作條件且穩定(PM=53.8 0)之摺疊疊接式運算放大器。

英文摘要

CMOS Operational Amplifier (OPA) is main sub-structure of mixed-mode integrated circuit system in nowadays. In this paper ,the main components high performance OPA consist of the basic bias reference current circuits, input differential amplifier and common-source with source degeneration stage are analyzed and discussed in detail. The proposed high output swing folded cascoded OPA with a chip area of 2468.0468.0mm is designed and fabricated in a 2P4M TSMC 0.35-um CMOS process. And experimental results show that the OPA is well stable (phase margin about 8.53), with 3.2V output swing, unit-gain bandwidth (14.6MHz), 92dB CMRR, 90dB PSRR and 14.85V/us slew rate performances.

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