| 运算放大器共模抑制比的仿真与测试 |
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| 引用本文： | 黄晓宗,黄文刚,刘伦才,晏开华,何峥嵘,王成鹤,王国强.运算放大器共模抑制比的仿真与测试[J].微电子学,2012,42(2):154-158. |
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| 作者姓名： | 黄晓宗 黄文刚 刘伦才 晏开华 何峥嵘 王成鹤 王国强 |
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| 作者单位： | 中国电子科技集团公司 第二十四研究所,重庆,400060 |
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| 摘 要： | 从运算放大器共模抑制比(CMRR)定义开始,对多种仿真和测试方法进行分析和比较,深入论述辅助元器件(如电阻和辅助放大器)对待测器件(DUT)仿真和测试结果的影响,分别总结出适合于仿真和测试的方法,为运算放大器设计过程中的仿真验证和封装后的测试提供参考。
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| 关 键 词： | 运算放大器 共模抑制比 仿真 测试 |
Simulation and Measurement Techniques for CMRR of Operational Amplifiers |
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| HUANG Xiaozong
,
HUANG Wengang
,
LIU Luncai
,
YAN Kaihua
,
HE Zhengrong
,
WANG Chenghe
,
WANG Guoqiang.Simulation and Measurement Techniques for CMRR of Operational Amplifiers[J].Microelectronics,2012,42(2):154-158. |
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| Authors: | HUANG Xiaozong HUANG Wengang LIU Luncai YAN Kaihua HE Zhengrong WANG Chenghe WANG Guoqiang |
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| Affiliation: | (Sichuan Institute of Solid-State Circuits,China Electronics Technology Group Corp.,Chongqing 400060,P.R.China) |
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| Abstract: | Various methods for simulation and measurement of common-mode rejection ratio(CMRR) of operational amplifiers were analyzed and compared.Effects of external elements,such as resistors and auxiliary amplifiers,on the device-under-test(DUT) were discussed in detail.Finally,methods suitable for simulation and measurement were summarized,respectively,which may provide a reference for simulation during design of operational amplifiers and measurement after packaging. |
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| Keywords: | Operational amplifier Common-mode rejection ratio(CMRR) Simulation Measurement |
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