可應用於感測網路及射頻晶片之新式智慧型溫度感測器

A New CMOS Smart Temperature Sensor for Sensor Network / RFID Applications

葉修銘(Hsiu-Ming Yeh)

指導教授 ： 吳紹懋

元智大學/電機通訊學院/電機工程學系/碩士(2008年)

摘要

此論文提出可應用於感測網路及射頻晶片之新式智慧型溫度感測器。此次提出的溫度感測器在使用溫度補償之電流源以及一增益級使得二極體連接形式的電晶體作為感測裝置以達成高線性以及高輸出範圍。原感測電路以及一十位元雙斜率類比至數位轉換器皆設計為符合3.3伏特電壓源以及TSMC 0.35μm CMOS 2P4M標準製程。當溫度從0°C變化至100°C，輸出電壓則以3.3 mV/°C的變化率從1.32伏特變化至1.65伏特。而線性偏差則介於-0.3 %和0.16%之間。主要溫度感測器的功率消耗為40.8μW。

關鍵字

溫度感測器 ； 零溫度係數 ； 類比至數位轉換器

並列摘要

In this thesis, a new CMOS Smart temperature sensor which can be applied to sensor networks or RFID is presented. The proposed temperature sensor employs a diode-connected MOS ttransistor as the sensor device while using a simple temperature- compensated bias-current stage and an amplifier stage to achieve high linearity and high output swing. The prototype circuit with a 10-bit dual-slope ADC is designed from a supply of 3.3V in the TSMC 0.35μm CMOS 2P4M standard process. When the temperature rises from 0°C to 100°C, the output voltage swings from 1.32~1.65V. The linearity deviation is between -0.3 % and 0.16% with a gain of 3.3 mV/°C; the power consumption is about 40.8μW for core temperature sensor.

並列關鍵字

temperature sensor ； ZTC ； ADC

參考文獻

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