计算机与数字工程2013，Vol.41Issue(4)：666-669,4.
一种适用于RFID标签的高精度温度传感器的分析与设计
A Temperature Sensor with Ultra-High Accuracy for RFID Tags
田文卓1
作者信息
- 1. 华中科技大学光学与电子信息学院 武汉430074
- 折叠
摘要
Abstract
This paper describes an ultra-high accuracy CMOS temperature sensor intended for RFID applications, which is implemented in SMIC 0. 18μm CMOS process. Instead of using any bipolar transistor, the proportion to absolute temperature(PTAT) current generator is based on sub-threshold MOS operation. A current-controlled oscillator(CCO) can be utilized to transform the PTAT current into temperature-dependent clock signal which is converted into digital signals by a counter. Through the optimization of the design of the current source and comparator, the sensor achieves a sensing inaccuracy of -0. 1/ + 0. 3℃ over operating temperature range from - 20℃ to 50℃, which consumes less than 50μA from a 1. 8V supply.关键词
RFID/温度传感器/高精度/电流控制振荡器Key words
radio frequency identification/ temperature sensor/ high accuracy/ current-controlled oscillator分类
信息技术与安全科学引用本文复制引用
田文卓..一种适用于RFID标签的高精度温度传感器的分析与设计[J].计算机与数字工程,2013,41(4):666-669,4.
