| 一种两级运放中消除右半平面零点的新结构 |
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| 引用本文： | 银海,张波,刘强.一种两级运放中消除右半平面零点的新结构[J].微电子学,2006,36(3):356-357,362. |
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| 作者姓名： | 银海 张波 刘强 |
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| 作者单位： | 电子科技大学,IC设计中心,四川,成都,610054 |
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| 摘 要： | 提出了一种新的两级运放结构,可以消除由密勒补偿电容引起的右半平面零点。该结构采用多路径零点取消(MZC)的理论,不同于传统的方式,该结构直接利用了第二级的负载管,来引入前馈通路取消右半平面零点,简化了电路,降低了功耗。
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| 关 键 词： | 两级运放 密勒补偿 零点取消 |
| 文章编号： | 1004-3365（2006）03-0356-02 |
| 收稿时间： | 2005-09-14 |
| 修稿时间： | 2005-09-142005-11-30 |
A New Structure of Two-Stage Amplifier Without RHP Zero |
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| YIN Hai,ZHANG Bo,LIU Qiang.A New Structure of Two-Stage Amplifier Without RHP Zero[J].Microelectronics,2006,36(3):356-357,362. |
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| Authors: | YIN Hai ZHANG Bo LIU Qiang |
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| Affiliation: | IC Design Center, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P. R. China |
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| Abstract: | A new structure of two stage amplifier is presented,which eliminates RHP zeros caused by Miller compensation capacitance.The structure is based on the theory of multipath zero cancellation(MZC).In contrast to conventional topology,the new structure directly uses loading transistor in the second stage of the amplifier to create the feedforward multipath to cancel the RHP zero,so it simplifies the circuit and reduces the power dissipation. |
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| Keywords: | Two stage amplifer Miller compensation Zero cancellation |
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