| CMOS峰值检测电路 |
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| 引用本文： | 高松松,王颖,刘云涛,李婷,高嵩.CMOS峰值检测电路[J].微电子学与计算机,2011,28(9):73-76. |
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| 作者姓名： | 高松松 王颖 刘云涛 李婷 高嵩 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 中央高校基本科研业务费专项资金(GK2080260104;HEUCF110801); 黑龙江省自然科学基金项目(QC2009C66) |
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| 摘 要： | 采用差动运算放大器加电流镜的方法,设计了一种CMOS峰值检测电路,包括峰值电压检测及输入信号过峰时刻甄别两部分.该电路设计基于0.5μm CMOS工艺,实现对峰值电压范围为0～5V,脉冲宽度1～5μs的准高斯信号的精确检测,误差小于6mV。另外,改进了过峰时刻甄别电路,采用了先微分再过零比较的办法,避免了一个准高斯信号输出多个峰值电压.
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| 关 键 词： | CMOS 峰值检测 甄别 0.5μm |
CMOS Peak Detector Circuit |
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| GAO Song-song,WANG Ying,LIU Yun-tao,LI Ting,GAO Song.CMOS Peak Detector Circuit[J].Microelectronics & Computer,2011,28(9):73-76. |
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| Authors: | GAO Song-song WANG Ying LIU Yun-tao LI Ting GAO Song |
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| Affiliation: | GAO Song-song,WANG Ying,LIU Yun-tao,LI Ting,GAO Song (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | A CMOS peak detection circuit using differential operational amplifier with current mirror is presented,including input signal peak voltage detector and over-peak discriminator.The circuit design is based on 0.5μm CMOS technology,achieving the detection for quasi-Gaussian signal,the range of which peak voltage is 0～5V and the peaking time is 1～5μs,error is less than 6mV.Another improvement is for over-peak discriminator,using first differential then compared with zero in order to avoid one quasi-Gaussian multiple peak voltage output. |
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| Keywords: | CMOS peak detect discriminate 0 5μm |
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