一种低电源电压曲率补偿带隙基准  

A Low Supply Voltage Curvature-correction Bandgap Reference Circuit

作　　者：蔡化[1] 龚敏[2] 

机构地区：[1]四川大学物理科学与技术学院,四川成都610064 [2]微电子技术四川省重点实验室,四川成都610064

出　　处：《现代电子技术》2007年第14期173-176,共4页Modern Electronics Technique

摘　　要：设计了一个在0．8μm BiCMOS工艺、低于1V电源电压下的带隙基准电压源，能稳定产生0．61V的基准电压。该电路结合当今电压基准主流技术及研究进展，采用了一种系统失调仅912μV的新型运算放大器；采取了T型电阻网络和加入曲率补偿支路的方法，实现了大于59dB电源抑制比和-30～150℃范围内11．7ppm／℃的温度系数。In this paper, associated with modern technique and research, a bandgap reference circuit, which has a supply voltage of sub - 1 V and generates a voltage of 0.61 V,has been designed based on a 0.8 μm BiCMOS technology. By using a kind of new operational amplifier with only 912 μV systematic offset, T resistor network as well as a subsidiary circuit,a PSRR of higher than 59 dB and a low temperature coefficient of 11.7 ppm/℃ from -30-150 ℃ have been achieved.

关 键 词：BICMOS 带隙基准 T型电阻网络 曲率补偿 

分 类 号：TN86[电子电信—信息与通信工程]