摘要
文章提出一种分段线性补偿的带隙基准,可以大幅减小带隙基准的温度系数。在-40～120℃范围内,仅两级补偿就可以将某工艺条件下一种传统带隙基准的温度系数从15ppm/℃减小到2ppm/℃。如果增加补偿级数,温度系数还可以进一步减小。该补偿方法修正过程简单,并且具有通用性,不受具体工艺参数的限制。
A bandgap voltage reference is presented with a piecewise linearly compensating circuit in order to reduce the temperature coefficient greatly. With only two compensating stage, the temperature coefficient of a conventional bandgap reference falls down from 15ppm/℃ to 2ppm/℃ over the -40℃ to 120℃ temperature range. If more stages of compensating stages are added to the circuit, the temperature coefficient can be further decreased. The compensating circuit is simple and independent on the process.
出处
《微电子学与计算机》
CSCD
北大核心
2007年第1期169-172,共4页
Microelectronics & Computer
关键词
曲率补偿
带隙电压基准
温度系数
Curvature-Corrected, Bandgap voltage reference, Temperature coefficient
