| 一种基于准浮栅技术的折叠差分结构及其应用 |
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| 引用本文： | 张宝君,杨银堂,朱樟明,张海军.一种基于准浮栅技术的折叠差分结构及其应用[J].微电子学,2006,36(1):97-100. |
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| 作者姓名： | 张宝君 杨银堂 朱樟明 张海军 |
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| 作者单位： | 西安电子科技大学,微电子学院,宽禁带半导体材料与器件教育部重点实验室,陕西,西安,710071 |
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| 基金项目： | 中国科学院资助项目;教育部预研项目 |
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| 摘 要： | 提出了一种基于准浮栅技术的新型折叠差分结构,其偏置电流源的电压降被折叠到输出电压摆幅中,且不受共模输入电压限制而达到较大范围,非常适于低压应用。基于此结构,实现了一种超低压运算放大器。仿真分析表明,该运算放大器能够实现轨到轨(rail-to-rail)的共模输入电压范围和输出电压摆幅,以及较高的共模抑制比。
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| 关 键 词： | 准浮栅 超低压 折叠差分对 运算放大器 |
| 文章编号： | 1004-3365（2006）01-0097-04 |
| 收稿时间： | 2005-05-13 |
| 修稿时间： | 2005-05-132005-07-25 |
A Novel Folded Differential Structure Based on Quasi-Floating Gate and Its Application |
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| ZHANG Bao-jun,YANG Yin-tang,ZHU Zhang-ming,ZHANG Hai-jun.A Novel Folded Differential Structure Based on Quasi-Floating Gate and Its Application[J].Microelectronics,2006,36(1):97-100. |
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| Authors: | ZHANG Bao-jun YANG Yin-tang ZHU Zhang-ming ZHANG Hai-jun |
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| Abstract: | A new folded differential pair topology based on quasi-floating gate technique is presented.The voltage drop across the bias current source is folded up into the same range over which the output voltages swing,facilitating low-voltage operation.Based on the structure,an ultra-low voltage operational amplifier is designed,which provides a rail-to-rail common-mode input voltage range and output voltage swing,as well as a high common mode rejection ratio(CMRR). |
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| Keywords: | Quasi-floating gate Ultra-low voltage Folded differential pair Operational amplifier |
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