一种可应用于无源RFID的新型CMOS温度传感器设计  

Design of a Novel CMOS Temperature Sensor for RFID Application

作　　者：黄烈江 潘圆君 沈狄龙 陈思超 潘国荣[1] 付凯 HUANG Liejiang;PAN Yuanjun;SHEN Dilong;CHEN Sichao;PAN Guorong;FU Kai(Hangzhou Xinmei Complete Electric Appliance Manufacturing Co.,Ltd.,Hangzhou 311200,P.R.China)

机构地区：[1]杭州欣美成套电器制造有限公司,杭州311200

出　　处：《微电子学》2023年第2期181-188,共8页Microelectronics

基　　金：国家自然科学基金资助项目(61971114)。

摘　　要：针对无源RFID低功耗的应用需求,基于SMIC 0.18μm CMOS工艺设计了一种低功耗CMOS温度传感器。该传感器首先基于双晶体管电路将温度信号转换为与之成正比的电压信号,并进一步转换为电流信号,然后通过振荡器电路转换为频率信号,最终经计数器后转换为与温度对应的二进制数字信号输出。仿真结果表明,在-20~100℃范围内传感器具有良好的线性度和温度精度,且传感器总功耗仅为1.05μW,可满足无源RFID领域应用需求。In order to meet the application requirement of passive RFID,a low power CMOS temperature sensor was designed in SMIC 0.18μm CMOS process.The sensor firstly converted the temperature signal into a voltage one through double-transistor circuits and then into a current signal.Afterwards,the signal was converted into a frequency one by a ring oscillating circuit.Eventually the signal was output in the form of a binary number by a counter circuit.Simulation results demonstrate that the sensor achieves good linearity and accuracy in the range of-20-100℃,and only consumes power of 1.05μW,which can be potentially applied in the field of RFID.

关 键 词：无源RFID CMOS温度传感器 谐振电路 计数器 

分 类 号：TN432[电子电信—微电子学与固体电子学]