| 带UVLO功能的CMOS零温度系数带隙基准 |
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| 引用本文： | 张涛,李伊珂,廖永波. 带UVLO功能的CMOS零温度系数带隙基准[J]. 电子科技大学学报(社会科学版), 2008, 0(Z1) |
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| 作者姓名： | 张涛 李伊珂 廖永波 |
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| 作者单位： | 电子科技大学VLSI设计中心;电子科技大学VLSI设计中心 成都; |
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| 摘 要： | 采用CMOS工艺设计了一种零温度系数的带隙基准与零温度系数欠压闭锁(UVLO)的复用电路。由于这种复用,使其与传统的采用BiCMOS或CMOS工艺设计的电路相比,工艺成本低,易于实现。电路由通过改进的带隙结构产生零温度系数的基准电压,并同时检测输入电压,产生对温度和工艺不敏感的输入电压检测信号跳变阈值,实现欠压闭锁。同时通过反馈实现迟滞,克服了单一阈值的弱抗干扰能力。
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| 关 键 词： | 带隙基准 CMOS工艺 温度系数 欠压闭锁 |
CMOS Band-Gap Voltage Reference of Zero Temperature Coefficients with UVLO Function |
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| ZHANG Tao,LI Yi-ke,, LIAO Yong-bo. CMOS Band-Gap Voltage Reference of Zero Temperature Coefficients with UVLO Function[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2008, 0(Z1) |
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| Authors: | ZHANG Tao LI Yi-ke LIAO Yong-bo |
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| Affiliation: | ZHANG Tao,LI Yi-ke,, LIAO Yong-bo (VLSI Design Center,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | This paper proposes a voltage reference based on standard CMOS process. The reference voltage with zero temperature coefficient is generated by the modified band-gap structure. By monitoring the input voltage, the reference generates a precise UVLO signal whose threshold voltage has little dependence to the temperature and technology change. Additionally, the hysteresis is realized by using a feedback circuit. |
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| Keywords: | band-gap voltage reference CMOS process temperature coefficients UVLO |
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