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宽输入共模电压范围电流检测放大器的研究与设计 被引量：4

Research and Design of Wide Input Common-Mode Range Current-Sense Amplifier
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摘要 针对高端电流检测放大器输入级对宽输入共模电压范围的要求,对宽输入共模电压范围放大器的输入结构开展了研究,提出了一种宽共模输入范围的输入级结构,特点是具有低输入偏置电流,并能兼顾高低共模电平工作的需要.给出了整个电流检测放大器的电路设计.该放大器在1.5μm BCD工艺下设计实现.芯片的测试结果表明,当采用5V单电源供电时,电路的输入共模范围可达0~30V,最大总误差不超过1.67%. In order to meet the demand for a wide input common-mode range （ICMR） required by high-side current-sensing amplifiers,input stages whose ICMR can exceed the supply rail were researched and analyzed. Combining the advantages of different circuit structures, a wide ICMR input stage having low input bias current was proposed. With the input stage, a current-sensing amplifier was designed and implemented in a 1.5μm BCD process. It can work at both high and low common mode voltages. The test results show that its ICMR is from 0 to 30V at a 5V supply voltage. Its total output error is below 1.67%.
作者 江力 吴晓波 严晓浪
机构地区 浙江大学超大规模集成电路设计研究所
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2007年第8期1289-1294,共6页 半导体学报（英文版）
基金 国家自然科学基金(批准号:50237030) 浙江省自然科学基金(批准号:Z104441)资助项目~~
关键词 宽输入共模电压范围 输入级 高端电流检测 BCD工艺 wide input common-mode range input stage high-side current-sensing BCD technology
分类号 TN722 [电子电信—电路与系统]
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参考文献2

二级参考文献9

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共引文献16

同被引文献28

  • 1李国.基于过采样技术提高ADC分辨率的研究与实现[J].计算机工程,2005,31(B07):244-245. 被引量：16
  • 2陈卫洁,邹雪城,程帅,邓敏.一种超宽共模输入范围高性能运算放大器的设计[J].微电子学与计算机,2007,24(1):79-81. 被引量：5
  • 3朱莹,李丽,杨盛光,何书专,张川.一种高共模抑制比恒定跨导运算放大器[J].微电子学,2007,37(2):242-245. 被引量：4
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引证文献4

二级引证文献10

Journal of Semiconductors
2007年 第8期

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