| 基于叠加型的温度补偿电流源的设计 |
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| 引用本文： | 应建华,方超,张姣阳.基于叠加型的温度补偿电流源的设计[J].微电子学与计算机,2008,25(3):114-118. |
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| 作者姓名： | 应建华 方超 张姣阳 |
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| 作者单位： | 华中科技大学,电子科学与技术系,湖北,武汉,430074 |
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| 摘 要： | 提出了一个新型电流叠加型的温度补偿电流源的设计,通过新增加一条电流支路,对温度特性进行优化,使用简单的结构,达到了很好的温度特性和电源电压调整率。使用XFAB公司的0.6μm CMOS工艺模型,Cadence模拟验证结果表明,在-40~135℃范围内,温度系数为16ppm/℃;电源电压抑制比为77.2dB。该方案已经应用于AC/DC转换器芯片。
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| 关 键 词： | 叠加型 温度补偿 温度系数 |
| 文章编号： | 1000-7180(2008)03-0114-05 |
| 修稿时间： | 2007年4月12日 |
Design of Temperature-Independent Current Reference Based on Superposition Technology |
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| YING Jian-hua,FANG Chao,ZHANG Jiao-yang.Design of Temperature-Independent Current Reference Based on Superposition Technology[J].Microelectronics & Computer,2008,25(3):114-118. |
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| Authors: | YING Jian-hua FANG Chao ZHANG Jiao-yang |
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| Abstract: | A CMOS temperature-independent current reference with novel superposition structure is presented, which uses a third branch extent to optimize the temperature features by curvature ctmapensation. Devdoped for an AC/DC converter, the current reference is implemented in 0.6μm CMOS technology, which is simulated temperaaae coefficient of 16 ppm/℃ in the temperature range from- 40℃ to 135℃ and 77.2dB of simulated power supply rejection ratio (PSRR). |
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| Keywords: | superposition temperature compensation temperature coefficient |
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