CMOS Magnetic Field to Frequency Converter
學年 91
學期 2
出版（發表）日期 2003-02-01
作品名稱 CMOS Magnetic Field to Frequency Converter
作品名稱（其他語言）
著者 Chen, Shr-lung; Kuo, Chien-hung; Liu, Shen-iuan
單位 淡江大學電機工程學系
出版者
著錄名稱、卷期、頁數 IEEE Sensors Journal 3(2), pp.241-245
摘要 In this paper, a CMOS magnetic field to frequency converter with high resolution is presented. It is composed of two voltage-controlled ring oscillators whose output frequency differences linearly vary with the magnetic field perpendicular to the chip surface. The prototype circuit has been fabricated in a 0.5-/spl mu/m CMOS process and operated at a 5-V supply voltage. The measured sensitivity is 24 kHz/mT and the power consumption is 5.1 mW. The small equivalent resolution of at least 20 /spl mu/T can be achieved. The frequency offset is 42 kHz when no magnetic field applied. Its nonlinearity within /spl plusmn/120 mT is smaller than 0.56%.
關鍵字
語言 en
ISSN
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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