| 一种二阶补偿的高精度带隙基准电压源设计 |
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| 引用本文： | 韩健,孙玲玲,洪慧.一种二阶补偿的高精度带隙基准电压源设计[J].杭州电子科技大学学报,2008,28(5):1-4. |
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| 作者姓名： | 韩健 孙玲玲 洪慧 |
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| 作者单位： | 杭州电子科技大学电子信息学院,浙江杭州,310018 |
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| 摘 要： | 基于charter 0.35μm标准CMOS工艺,设计了一种带自启动电路的高精度、低温漂、低功耗带隙基准电压源。电路在传统带隙基准源的基础上进行改进,利用不同材料电阻温漂系数的比值实现二阶补偿。仿真结果表明,在-40-120℃范围内,输出电压达到1.148 V,平均温漂系数为4.9ppm/℃,功耗仅为57μW。
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| 关 键 词： | 自启动电路 带隙基准电压源 二阶补偿 |
Design of High Precision Bandgap Voltage Reference Based on Second-order Compensation Technique |
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| HAN Jian,SUN Ling-ling,HONG Hui.Design of High Precision Bandgap Voltage Reference Based on Second-order Compensation Technique[J].Journal of Hangzhou Dianzi University,2008,28(5):1-4. |
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| Authors: | HAN Jian SUN Ling-ling HONG Hui |
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| Affiliation: | ( School of Electronics ＆ Information, Hangzhou Dianzi University, Zhejiang, Hangzhou 310018, China) |
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| Abstract: | A high precision, low temperature coefficient and low power bandgap reference with a start - up circuit is designed on the charter 0.35μn CMOS technology. The circuit is developed based on the conventional bandgap reference, and achieved second - order compensation using a temperature dependent resistor ratio generated by the different kinds of resistors. The simulation results show that the circuit delivers an output voltage of 1. 149 V and achieves a temperature coefficient of 4.9 ppm/℃ over the range from - 40 ℃ to 120 ℃. The power consumption of the circuit is only 57uW. |
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| Keywords: | start - up circuit bandgap reference second - order compensation |
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