一种无运放输出可调的带隙基准电压源设计  

Design of Adjustable Bandgap Voltage Reference without Opamp

作　　者：杜士才 方芳 李娟 DU Shicai;FANG Fang;Li Juan(China Electronics Technology Group Corporation No.58 Research Institute,Wuxi 214072,China)

机构地区：[1]中国电子科技集团公司第五十八研究所,江苏无锡214072

出　　处：《电子与封装》2018年第8期33-35,共3页Electronics & Packaging

摘　　要：设计了一种输出可调的带隙基准电压源。该电路结构简单,无运放结构,避免了运放失调电压对基准电压源精度的影响。调整电阻即可调整带隙基准的输出电压。该设计基于TSMC 0.18μm BCD工艺,采用Spectre进行仿真。仿真结果显示,在电源电压2~6 V、温度-55~125℃的范围内,可产生输出可调的带隙基准电压,最大功耗为57μW。A new bandgap voltage reference with adjustable output is designed.A simple circuit structure without op-amp is adopted,avoiding the effect of offset voltage on the accuracy.And,the bandgap output voltage can be adjusted by trimming the resistors.The design is based on TSMC 0.18μm BCD process and Spectre environment to simulate.Simulation results showthat with an input voltage range of 2 Vto 6Vand the temperature range of-55℃to 125℃,the bandgap reference has an adjustable output voltage.And the power consumption is less than 57μW.

关 键 词：带隙基准电压 无运放 输出可调 

分 类 号：TN402[电子电信—微电子学与固体电子学]