摘要
为了提高传统带隙基准电压源的温度特性,本文采用一种双差分输入对的运算放大器对传统带隙基准电路进行高阶温度补偿。电路采用TSMC0.35μmCMOS混合信号工艺实现,采用Cadence公司Spectre软件进行电路仿真。仿真结果表明,带隙基准电压源在-40~125℃范围内的温度系数为2.2ppm/℃。
This paper demonstrates a design of bandgap voltage reference with high precision and low temperature coefficient. A dual-differential input operational amplifier is used for high-temperature coefficient compensation. The chip is simulated by using Cadence's Spectre software and implemented by using TSMC 0.35 μm mixed-signal process. Simulation results indicate that the bandgap voltage reference has a temperature coefficient of 2.2 ppra/℃ in -40-125℃.
出处
《电子与信息学报》
EI
CSCD
北大核心
2009年第5期1260-1263,共4页
Journal of Electronics & Information Technology
基金
浙江省科技计划重点项目(2007C21021)资助课题
关键词
带隙基准电路
高精度
高阶温度补偿
Bandgap voltage reference
High precision
High-temperature coefficient compensation