摘要
采用相关双采(CDS)电路,设计了一种新颖的高精度温度传感器,该温度传感器可用于CMOS集成电路的过温检测。传感器的温度感应部分仅采用9个MOS管,其输出的包含温度信息的电流信号通过一个电容进行积分,随后采用CDS电路对积分信号进行消除kTC噪声和降低1/f噪声处理,并同时进行采样处理,得到与温度成正比的电压信号。该新型温度传感器与标准CMOS工艺兼容,且仿真结果表明其具有较高的性能。
This paper presents a novel accurate CMOS temperature sensor with a correlated double sampling（CDS）circuit designed,and simulated for thermal testing and monitoring chips in CMOS technologies.In this design,a nine-MOS-transistor temperature sensor ’ s output current,which includes temperature characteristic integrated by a capacitor,the integral voltage signal is sent to a CDS circuit to eliminate kTC noise and reduce 1/f noise of the circuit.The new temperature sensor is compatible with standard CMOS technologies,and the simulation results show its good performances.
出处
《传感技术学报》
CAS
CSCD
北大核心
2012年第7期907-910,共4页
Chinese Journal of Sensors and Actuators
基金
2011年度高等学校博士学科点专项科研基金项目(20110185110003)
