一种中心值精确可调的高性能带隙基准电压源  

A bandgap reference circuit with the nominal reference voltage adjusted accurately

作　　者：陈琛[1] 何乐年[1] 严晓浪[1] 

机构地区：[1]浙江大学电气工程学院超大规模集成电路设计研究所,浙江杭州310027

出　　处：《电路与系统学报》2009年第2期95-98,共4页Journal of Circuits and Systems

摘　　要：不同的集成电路制造工艺,对平衡温度时的带隙基准电压值有影响。为此,本文提出了通过改变带隙基准电压输出级电路结构的方法,实现了在基准电路内部可精确调整基准电压中心值,以满足在不同工艺条件下电路系统对基准电压中心值的精度要求。本芯片根据CSMC公司0.5μm CMOS混合信号工艺模型设计并进行流片。测试结果表明,本文提出的方法能调整基准电压中心值。利用这种方法,可以实现带隙基准电压中心值宽范围的可调,使基准电压的输出完全符合系统所需。The nominal output voltage of a bandgap reference circuit is process-determined and fluctuant as process varies. This paper proposes a novel bandgap reference circuit. By modifying the output stage, the nominal output voltage of the proposed reference circuit can be adjusted accurately in a wide range, so that it can be adapted accordingly to satisfy the requirement of the system under different processes. A test circuit has been implemented in the CSMC 0.5μm CMOS process. The testing results show that the method proposed in this paper can adjust the nominal output value in a wide range.

关 键 词：CMOS模拟电路 带隙基准电压源 中心值可调 

分 类 号：TN401[电子电信—微电子学与固体电子学]