| 增益增强型CMOS运算放大器的自动优化算法 |
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| 引用本文： | 郑维山,邓青,张萌,龙善丽,吴建辉. 增益增强型CMOS运算放大器的自动优化算法[J]. 固体电子学研究与进展, 2006, 26(2): 225-229 |
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| 作者姓名： | 郑维山 邓青 张萌 龙善丽 吴建辉 |
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| 作者单位： | 东南大学国家专用集成电路系统工程技术研究中心,南京,210096 |
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| 摘 要： | 在增益增强型运算放大器优化中采用了自动设计方法,此方法在电路性能方程式和自适应遗传优化算法基础上对电路性能指标进行优化。该放大器在0.18μm CM O S工艺条件下中开环增益为92.1 dB,单位增益带宽积为1.78 GH z,相位裕度为55.1°和0.2%建立时间为1.27 ns,同时说明此优化设计方法的有效性。
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| 关 键 词： | 增益增强 自动优化 运算放大器 性能方程式 自适应遗传算法 |
| 文章编号： | 1000-3819(2006)02-225-05 |
| 收稿时间： | 2005-08-08 |
| 修稿时间： | 2005-10-17 |
An Automated Optimization Algorithm of a CMOS Gain-boost Op Amp |
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| ZHENG Weishan,DENG Qing,ZHANG Meng,LONG Shanli,WU Jianhui. An Automated Optimization Algorithm of a CMOS Gain-boost Op Amp[J]. Research & Progress of Solid State Electronics, 2006, 26(2): 225-229 |
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| Authors: | ZHENG Weishan DENG Qing ZHANG Meng LONG Shanli WU Jianhui |
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| Abstract: | The paper presents an application of automated optimization method in a gain-boost op amp design.The method is based on the analytical performance equation and adaptive genetic algorithm,which provides a way to improve performances of the op amp.The op amp could achieve open loop dc gain of 92.1 dB,a unity-gain bandwidth of 1.78 GHz with 55.1° phase margin and 0.2% setting time of 1.27 ns with simulated in 0.18 μm CMOS technology,meanwhile the effectiveness of this method has been proved. |
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| Keywords: | gain-boost automated optimization operational amplifier performance equation adaptive genetic algorithm |
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