教師資料查詢 | 類別: 會議論文 | 教師: 郭建宏 KUO, CHIEN-HUNG (瀏覽個人網頁)

標題:CMOS oversampling ΔΣ magnetic to digital converters
學年89
學期2
發表日期2001/05/01
作品名稱CMOS oversampling ΔΣ magnetic to digital converters
作品名稱(其他語言)
著者Ho, Lee-an; Chen, Shr-lung; Kuo, Chien-hung; Liu, Shen-iuan
作品所屬單位淡江大學電機工程學系
出版者IEEE
會議名稱The 2001 IEEE International Symposium on Circuits and Systems
會議地點Sydney, Australia
摘要In this paper, two CMOS oversampling delta-sigma (ΔΣ) magnetic-to-digital converters (MDCs) are proposed. The first MDC consists of the magnetic operational amplifier (MOP) and a first-order switched-capacitor (SC) ΔΣ modulator. The second one directly uses the MOP to realize a first-order SC ΔΣ modulator. They can convert the external magnetic field into digital form. Both circuits were fabricated in a 0.5-μm CMOS double-poly double-metal (DPDM) process and operated at a 5-V supply voltage and the nominal sampling rate of 2.5 MHz. The dynamic ranges of these converters are at least ±100 mT. The gain errors within ±100 mT are less than 3% and the minimum detectable magnetic field can reach as small as 1 mT. The resolutions are 100 μT for both of the two MDCs. The measured sensitivities are 1.327 mv/mT and 0.45 mv/mT for the first and the second MDC, respectively.
關鍵字
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間
通訊作者
國別澳洲
公開徵稿Y
出版型式紙本
出處The 2001 IEEE International Symposium on Circuits and Systems,pp.1582 - 1586
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