一种输出可调的高性能带隙基准电压源的设计  

Design of a High Performance Bandgap Voltage Reference with Adjustable Output

作　　者：吴蓉[1] 邹伟[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2011年第6期59-63,共5页Journal of Lanzhou Jiaotong University

摘　　要：根据带隙基准电压源的基本原理,在传统带隙电压源的电路结构上,采用曲率补偿技术和自偏置共源共栅电流镜,获得了一种结构简单、电源抑制比和温度系数等性能都较好的输出可调的带隙基准电压源.用Cadence软件和CSMC的0.5μm CMOS工艺进行仿真,结果表明,在-40～120℃,基准电压的温度系数为5.8ppm/℃,在2～3.6V之间电源调整率仅为0.24mV/V.基准电压中心值可宽范围调整,各项性能指标满足设计要求.A novel bandgap voltage reference with simple structure is designed based on classic bandgap reference structure.Using curvature compensation technique,the bandgap voltage reference features low temperature coefficient and high power supply rejection ratio（PSRR）.The circuit is simulated with Cadence tool and 0.5 μm CMOS model.The results show that the voltage reference＇s temperature coefficient is 5.8 ppm/℃ over the temperature range of-40~120℃ and a line regulation of 0.24 mV/V from 2 V to 3.6 V.The central value of the reference voltage is adjustable in a wide range,and the performance parameters meet the design requirements.

关 键 词：带隙基准电压源 输出可调 电源抑制比 温度系数 

分 类 号：TN432[电子电信—微电子学与固体电子学]