JSSC 2010第6期Other0.18μm

A Sub-22W Embedded CMOS Temperature Sensor for RFID Food Monitoring Application

一种基于亚阈值MOS串联的嵌入式CMOS温度传感器，用于RFID食品监测，功耗极低。

0.18μm CMOS, 0.5V/1V, 119nW, 333 samples/s, ±0.8°C精度

CMOS温度传感器亚阈值MOSRFID超低功耗食品监测

▸采用亚阈值MOS串联作为传感元件

▸支持PTAT和CTAT信号获取

▸嵌入式设计适用于无源UHF RFID标签

Abstract

An ultra-low power embedded CMOS temperature sensor based on serially connected subthreshold MOS opera- tion is implemented in a 0.18 m CMOS process for passive RFID food monitoring applications. Employing serially con- nected subthreshold MOS as sensing element enables reduced minimum supply voltage for further power reduction, which is of utmost importance in passive RFID applications. Both proportional-to-absolute-temperature (PTAT) and complimen- tary-to-absolute-temperature (CTAT) signals c