集成温度传感器的超高频无源电子标签芯片设计  

A Circuit Design for RFID Passive Tag With Temperature Sensor

作　　者：沈红伟[1] 李力南[1] 陈国华[1] 

机构地区：[1]中国科学院微电子研究所,北京100029

出　　处：《微电子学与计算机》2008年第4期192-195,共4页Microelectronics & Computer

摘　　要：提出了实现具有温度传感功能的RFID无源标签芯片电路设计思路，针对900MHz超高频EPC Class 0协议，采用多电压设计思想提出电子标签结构及参考电路，包括射频前端接收电路、数字逻辑控制部分、温度传感及量化、存储器四部分．采用Chartered 0．35μm CMOS工艺库仿真．芯片工作电流15．4μA（不包括存储器），温度量化采用一个低功耗8位逐次逼近模数转化器实现，输出温度量化误差在-10～120℃范围内为±2℃．A long range passive tag with temperature sensor in 0.35μm CMOS process has been presented. And the design is followed the EPC Class 0 protocol. The design includes the RF front end circuit, digital logical circuit, temperature sensor and memory circuit. The design is simulated by using the library of Chartered 0.35 μm CMOS process. The circults of the chip work at multi supply voltage for lower power, and the total current dissipation is 15.4μA. A low-power 8bit successive approximation analog to digital converter （ADC） is used to quantize the temperature output. The error of the temperature quantity output is ± 2 ℃ in the range of - 10-120℃.

关 键 词：射频识别 整流器 温度传感器 逐次逼近型模数转换器 

分 类 号：TN1[电子电信—物理电子学]