一种面向植入式RFID标签的温度传感器  

A Temperature Sensor for Implanted RFID Tags

作　　者：伏仕波 肖宛昂[1,3,4] 毛文宇 王昂[1,2] 于丽娜 高万林 FU Shibo;XIAO Wan’ang;MAO Wenyu;WANG Ang;YU Lina;GAO Wanlin(Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,P.R.China;School of Microelectronics,University of Chinese Academy of Sciences,Beijing 100049,P.R.China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,P.R.China;Beijing Key Laboratory of Radio Frequency Integrated Circuit and System,Beijing 100083,P.R.China;College of Information and Electrical Engineering,China Agricultural University,Beijing 100083,P.R.China;Key Laboratory of Agricultural Infromationization Standardization,Ministry of Agriculture,Beijing 100083,P.R.China)

机构地区：[1]中国科学院半导体研究所,北京100083 [2]中国科学院大学微电子学院,北京100049 [3]中国科学院大学材料与光电研究中心,北京100049 [4]射频集成电路与系统北京市重点实验室,北京100083 [5]中国农业大学信息与电气工程学院,北京100083 [6]农业部农业信息化标准化重点实验室,北京100083

出　　处：《微电子学》2019年第6期772-776,782,共6页Microelectronics

基　　金：国家自然科学基金青年科学基金资助项目(61701473)

摘　　要：针对动物体温测量,提出一种新型测温方法,并设计了一种面向植入式RFID标签的温度传感器。首先介绍了传感前端电路,然后介绍了缩放型模数转换器的设计,最后采用SMIC 0.18μm CMOS工艺,对该温度传感器进行了仿真。仿真结果表明,在1.8 V工作电压下,平均电流为4.5μA,单次温度转换时间为1.8 ms,在25℃~45℃范围内,温度误差为±0.2℃。A novel temperature measurement method for animal temperature detection was proposed.With this new measurement method,a temperature sensor for implanted Radio Frequency Identification(RFID)tags was presented.Firstly the design of the analog front-end was discussed,then the zoom analog-to-digital converter was described,and finally the simulation results and the conclusions were presented.The proposed temperature sensor was designed and simulated in the SMIC 0.18μm CMOS IC process.The simulation results showed that the average current was 4.5μA under 1.8 V power supply,and the single conversion cycle consumed 1.8 ms.The inaccuracy of the sensor was ±0.2℃ at the temperature range of 25℃ to 45℃.

关 键 词：温度传感器 射频识别 体温测量 BJT晶体管 模数转换器 

分 类 号：TN492[电子电信—微电子学与固体电子学] TP212.1[自动化与计算机技术—检测技术与自动化装置]