一种宽电源带有高阶温度补偿的电压基准电路  

A wide power voltage reference with high-order curvature compensation

作　　者：陆航 蔡小五[1,2] 韩郑生 刘海南[1] 罗家俊 LU Hang;CAI Xiao-wu;HAN Zheng-sheng;LIU Hai-nan;LUO Jia-jun(Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院微电子研究所,北京100029 [2]中国科学院大学,北京100049

出　　处：《微电子学与计算机》2020年第12期38-41,共4页Microelectronics & Computer

基　　金：国家重点预研项目(31513040204)。

摘　　要：介绍了一种新型电压基准电路,通过引入高阶温度补偿和电源预调整结构,提高了基准电压精度.电路采用BCD工艺仿真,在-20~125℃温度范围内,输出电压的温度系数为1.4 ppm/℃;3 V到40 V的范围内,电源电压引起的基准电压变化率为0.00066%.本文设计的电压基准电路特别适用于宽电源电压输入,且对精度要求高的应用.A innovativevoltage reference generator topologyis presents in this paper.The design introducesa high-order curvature-compensation and a power preliminary adjustment structure toimprove the precision of voltage reference.The proposed design was implemented in a BCD process.Simulationresults have shown typicaltemperature coefficients as low as 1.4 ppm/℃overa temperature range of-20℃~125℃.The voltage variation is 0.00066%when operate voltage changes from 3 V to 40 V.The proposed voltage reference can be used in the design which requires wide power supply voltage input and high precision voltage reference.

关 键 词：高阶补偿 电压基准 BCD 温度系数 

分 类 号：TN433[电子电信—微电子学与固体电子学]