教師資料查詢 | 類別: 會議論文 | 教師: 楊維斌 Web-bin Yang (瀏覽個人網頁)

標題:A New Temperature Independent Current Controlled Oscillator
學年100
學期1
發表日期2011/12/07
作品名稱A New Temperature Independent Current Controlled Oscillator
作品名稱(其他語言)
著者Huang, Zheng-yi; Chiang, Jen-shiun; Yang, Wei-bin; Wang, Chi-hsiung
作品所屬單位淡江大學電機工程學系
出版者Intelligence Signal Processing and Communication Systems
會議名稱Intelligent Signal Processing and Communications Systems (ISPACS), 2011 International Symposium on
會議地點Chiang Mai, Thailand
摘要This paper describes a circuit, which generates a low temperature-dependent bias currents. In this paper, low temperature coefficient reference is presented. The circuit is firstly employed to generate a current reference with temperature compensation, then, supply current to the current controlled ring oscillator (CCO). Because of the oscillation frequency of CCO is proportional to temperature, the current is designed to be inversely proportional to temperature to compensate the temperature variation of CCO. There are four different oscillation frequency with temperature compensation has been completed, they are 10MHz, 20MHz, 30MHz and 40MHz respectively. The proposed circuit has been design by a 0.18um CMOS technology process and using computer simulation to evaluate the thermal drift of the reference current. The temperature coefficient of the proposed CCO is 24 ppm/℃ in the temperature range between -25 and 75℃ at 10MHz. In the 20MHz, 30MHz and 40MHz oscillation frequency, the temperature coefficients are 32 ppm/℃, 38 ppm/℃ and 34 ppm/℃ respectively.
關鍵字current controlled ring oscillator;temperature independent current reference
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20111207~20111209
通訊作者
國別
公開徵稿Y
出版型式
出處Intelligent Signal Processing and Communications Systems (ISPACS), 2011 International Symposium on, pp.1-4
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