| 双极型高精度大负载电流集成电压基准源设计 |
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| 引用本文： | 杨发顺,马奎,林洁馨,丁召,傅兴华.双极型高精度大负载电流集成电压基准源设计[J].半导体技术,2010,35(6):598-602. |
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| 作者姓名： | 杨发顺 马奎 林洁馨 丁召 傅兴华 |
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| 作者单位： | 贵州大学电子科学系,贵阳550025;贵州大学贵州省微纳电子与软件技术重点实验室,贵阳550025;贵州大学电子科学系,贵阳550025;贵州大学贵州省微纳电子与软件技术重点实验室,贵阳550025;贵州大学电子科学系,贵阳550025;贵州大学贵州省微纳电子与软件技术重点实验室,贵阳550025;贵州大学电子科学系,贵阳550025;贵州大学贵州省微纳电子与软件技术重点实验室,贵阳550025;贵州大学电子科学系,贵阳550025;贵州大学贵州省微纳电子与软件技术重点实验室,贵阳550025 |
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| 基金项目： | 贵州省工业科技攻关项目，贵州大学研究生创新基金资助项目 |
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| 摘 要： | 设计并实现了一种基于双极型工艺的2.5V高精度大负载电流集成基准电压源电路,通过对传统带隙基准电路的改进,设计中增加了电源电压分配电路、电流反馈电路和大电流驱动电路,实现高精度大负载电流的目标.通过Cadence软件平台下的Spectre仿真器对电路的温度系数、负载调整率、噪声、交流电源纹波抑制比、负载电流、启动时间等电参数进行仿真验证,得到了初始精度±0.5%,在-40～85℃范围内温度系数小于6×10-6/℃,负载电流0～50 mA,电源电压4.5～36 V,输出为2.5 V的集成电压基准源电路.该电路采用6 μm/36 VK极型工艺生产制造,芯片面积为1.7 mm×2.1 mm,具有过热保护、过流保护和反接保护功能.
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| 关 键 词： | 大负载电流 低温度系数 电源抑制比 过热保护 绝对温度比电流 |
Design of Integrated Voltage Reference with High-Precision and Large Load Current Based on Bipolar IC Process |
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| Yang Fashun,Ma Kui,Lin Jiexin,Ding Zhao,Fu Xinghua.Design of Integrated Voltage Reference with High-Precision and Large Load Current Based on Bipolar IC Process[J].Semiconductor Technology,2010,35(6):598-602. |
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| Authors: | Yang Fashun Ma Kui Lin Jiexin Ding Zhao Fu Xinghua |
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| Affiliation: | Yang Fashuna,b,Ma Kuia,Lin Jiexina,Ding Zhaoa,Fu Xinghuaa,b(a.Department of Electronics,b.Key Laboratory of Micro-Nano Electronics ofGuizhou Province,Guizhou University,Guiyang 550025,China) |
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| Abstract: | Based on bipolar IC process,a 2.5 V high-precision voltage reference of large current was designed and achieved.The aims of high-precision and large load current were achieved by improving the traditional band-gap voltage reference circuit and adding the distributor circuit of power supply,current feedback circuit and large current driving circuit.The temperature coefficient,the load regulation,the noise,the PSRR,the load current and the start-up time of the circuit were verified in the Spectre simulator wi... |
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| Keywords: | large load current low temperature coefficient PSRR over temperature protection PTAT current |
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