| 高精度轨对轨CMOS峰值检测电路设计 |
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| 引用本文： | 王开贤,邬齐荣,高鑫,李美光,汤恩松.高精度轨对轨CMOS峰值检测电路设计[J].四川大学学报(自然科学版),2009,46(6):1702-1708. |
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| 作者姓名： | 王开贤 邬齐荣 高鑫 李美光 汤恩松 |
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| 作者单位： | 四川大学物理科学与技术学院微电子技术四川省重点实验室,成都,610064 |
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| 基金项目： | 四川大学首届"大学生创新性实验计划"基金项目重点项目 |
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| 摘 要： | 介绍了一种高精度轨对轨CMOS峰值检测电路设计。基于信号“先缩小后放大”，在MOS采样开关管控制下电源对存储电容充电，该电路实现了轨对轨峰值检测，降低了检测电路的工作电流，提高了MOS开关管的速度和峰值检测的精度。该电路设计基于CSMC 0.5 um CMOS工艺，采用了5 V单电源，检测精度小于1 mV ，检测电压范围为0～Vdd ，整个检测电路的静态电流消耗为2 mA，正常工作频率为0.1 HZ～10 KHz。
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| 关 键 词： | 峰值检测 轨对轨 采样 CMOS差动放大器 同相比例运算电路 |
| 收稿时间： | 9/15/2008 1:38:01 PM |
| 修稿时间： | 9/30/2008 5:35:26 PM |
High-precision Rail-to-Rail CMOS peak detector circuit design |
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| WANG Kai-Xian,WU Qi-Rong,GAO Xin,LI Mei-Guang and TANG En-Song.High-precision Rail-to-Rail CMOS peak detector circuit design[J].Journal of Sichuan University (Natural Science Edition),2009,46(6):1702-1708. |
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| Authors: | WANG Kai-Xian WU Qi-Rong GAO Xin LI Mei-Guang and TANG En-Song |
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| Abstract: | A high-precision rail-to-rail CMOS peak detector circuit is designed . Based on that the signal is zooming out and in,and that the power supply can charge the storage capacitance under the control by MOS sample switch,the circuit could achieve rail-to-rail peak detector,lower the working current of the detection circuit,and improve the velocity of MOS switch and the precision of peak detector . The circuit design is based upon CSMC 0.5 μm CMOS technology,using 5 V single power supply . The detection precision is less than 1 mV,the range of detection voltage is 0～5 V, the static current dissipation is 2 mA,and the normal working frequency is 0.1 Hz～10 KHz. |
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| Keywords: | Peak Detector Rail-to-Rail Sample CMOS Differential- Amplifier In-phase Scale Operation Circuit |
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