| 一种用于模数转换器的高性能差分参考电压源 |
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| 引用本文： | 李丹,叶菁华,洪志良. 一种用于模数转换器的高性能差分参考电压源[J]. 半导体学报, 2005, 26(11): 2248-2253 |
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| 作者姓名： | 李丹 叶菁华 洪志良 |
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| 作者单位： | 复旦大学专用集成电路与系统国家重点实验室,上海,200433 |
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| 摘 要： | 介绍了一种可直接应用于模数转换器的低功耗、高性能差分参考电压源.它采用新型结构的带隙基准源产生高精度温度补偿的参考电流,参考电流通过跨导缓冲器直接转换成所需的差分参考电压.该差分电压精度高、温漂小、抗干扰能力强.电路选用TSMC 0.18μm CMOS工艺实现,芯片面积为250μm×350μm.经测量,电路功耗为0.9mW,输出差分参考电压的平均温度系数为9.5×10-6K-1.
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| 关 键 词： | 带隙基准源 差分参考电压 温度补偿 |
| 收稿时间： | 2015-08-19 |
A High Performance Differential Reference Voltage Generator Used in ADC |
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| Li Dan, Ye Jinghua, Hong Zhiliang. A High Performance Differential Reference Voltage Generator Used in ADC[J]. Journal of Semiconductors, 2005, In Press. Li D, Ye J H, Hong Z L. A High Performance Differential Reference Voltage Generator Used in ADC[J]. Chin. J. Semicond., 2005, 26(11): 2248.Export: BibTex EndNote |
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| Authors: | Li Dan Ye Jinghua Hong Zhiliang |
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| Affiliation: | State Key Laboratory of ASIC and System,Fudan University,Shanghai 200433, China;State Key Laboratory of ASIC and System,Fudan University,Shanghai 200434, China;State Key Laboratory of ASIC and System,Fudan University,Shanghai 200435, China |
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| Abstract: | A differential reference voltage generator with low power consumption and good performance, which is used in ADC, is introduced.The high performance temperature-compensated reference current is generated with a new structure bandgap, and the current is converted to the needed reference directly through the transconductor buffer.The differential voltage has high precision,low temperature-drift, and good anti-jamming ability.The circuit is realized with the TSMC 0.18μm CMOS process and the die area is 250μm×350μm.The chip has been tested.The power consumption is 0.9mW and the average temperature coefficient of the output differential reference voltage is 9.5e-6K-1. |
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| Keywords: | bandgap reference differential reference voltage temperature compensation |
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