| 一种高精度宽电源范围集成电压基准源设计 |
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| 引用本文： | 马奎,杨发顺,傅兴华.一种高精度宽电源范围集成电压基准源设计[J].微电子学与计算机,2011,28(12):89-91,95. |
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| 作者姓名： | 马奎 杨发顺 傅兴华 |
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| 作者单位： | 贵州大学电子科学系,贵州贵阳550025／贵州省微纳电子技术重点实验室,贵州贵阳550025 |
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| 基金项目： | 贵州省2010年度重点实验室建设计划项目 |
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| 摘 要： | 在SOC及智能功率集成电路中,对基准电压源的电源电压范围及输出驱动电流都提出了更高的要求.基于csmc 40VBCD工艺设计并实现了一种输出精度高、驱动能力强、电源电压范围宽的5V集成基准电压源电路.设计中通过HV_PMOS实现电源电压和基准核心电路工作电压的隔离,拓宽了电源电压范围,采用双重电流负反馈保证了基准电压的高精度输出.通过Cadence软件平台下的Spectre仿真器对电路的各项电参数进行仿真验证,得到电源电压范围9～30V,在-20～125℃范围内温度系数5.688×10-6/℃,启动时间6.369μs,负载电流0～40mA,输出为5V的集成电压基准源电路.
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| 关 键 词： | 高精度 宽电源范围 HV_PMOS 双重电流负反馈 |
Design of an Integrated Voltage Reference with High-precision and Wide Power Supply Range |
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| MA Kui,YANG Fa-shun,FU Xing-hua.Design of an Integrated Voltage Reference with High-precision and Wide Power Supply Range[J].Microelectronics & Computer,2011,28(12):89-91,95. |
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| Authors: | MA Kui YANG Fa-shun FU Xing-hua |
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| Affiliation: | MA Kui1,2,YANG Fa-shun1,FU Xing-hua1,2(1 Department of Electronics,Guizhou University,Guiyang 550025,China,2 Key Laboratory of Micro-Nano Technology of Guizhou Province,China) |
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| Abstract: | In SOCs and smart power ICs,it is more and more important that the voltage reference works within wide power supply range outputs large load current.In this paper,a voltage reference with high-precision,large load current and wide power supply range was proposed based on the CSMC 40V BCD process.Its output voltage is 5 V.In order to broaden the range of the power,a HV_PMOS was used to isolate the power and operating power of the reference circuit.The high-precision profits from the Double Close-loop Feedbac... |
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| Keywords: | high-precision wide power supply range HV_PMOS double close-loop feedback |
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