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標題:Supply Voltage and Temperature Insensitive Current Reference for the 4 MHz Oscillator
學年100
學期1
發表日期2011/12/12
作品名稱Supply Voltage and Temperature Insensitive Current Reference for the 4 MHz Oscillator
作品名稱(其他語言)
著者Wang, Chi-hsiung; Lin, Cheng-feng; Yang, Wei-bin; Lo, Yu-lung
作品所屬單位淡江大學電機工程學系
出版者NanYang Technological University; IEEE Singapore Section
會議名稱2011 13th International Symposium on Integrated Circuits (ISIC)
會議地點
摘要This paper presents a 4 MHz current control ring oscillator with a new temperature and supply voltage immune current reference implemented by 0.35um CMOS technology. Compared to the conventional oscillator with current reference techniques, the proposed approach shows a significant improvement for the sensitivities of temperature and supply voltage. The current reference is designed by combining positive and negative temperature effect circuits, such that it can exempt from the temperature and supply voltage variations. By HSPICE simulation, this new current reference is insensitive to the supply voltage with variations of -0.47%~0.67% over the supply voltage range of 2.97V to 3.63V, and it is also insensitive to the temperature with variation of 366 ppm/C over the temperature range of -40C to 100C. The proposed oscillator frequency is insensitive to the supply voltage with variations of -15%~20% over the supply voltage range of 2.97V to 3.63V, and it is insensitive to temperature with variation of 404 ppm/C over the temperature range of -40C to 100C.;This paper presents a 4 MHz current control ring oscillator with a new temperature and supply voltage immune current reference implemented by 0.35nm CMOS technology. Compared to the conventional oscillator with current reference techniques, the proposed approach shows a significant improvement for the sensitivities of temperature and supply voltage. The current reference is designed by combining positive and negative temperature effect circuits, such that it can exempt from the temperature and supply voltage variations. By HSPICE simulation, this new current reference is insensitive to the supply voltage with variations of -0.47%~0.67% over the supply voltage range of 2.97V to 3.63V, and it is also insensitive to the temperature with variation of 366 ppm/°C over the temperature range of -40°C to 100°C. The proposed oscillator frequency is insensitive to the supply voltage with variations of -15%~20% over the supply voltage range of 2.97V to 3.63V, and it is insensitive to temperature with variation of 404 ppm/°C over the temperature range of-40°C to 100°C.
關鍵字current reference; ring oscillator; supply voltage
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20111212~20111214
通訊作者
國別新加坡
公開徵稿
出版型式
出處2011 13th International Symposium on Integrated Circuits (ISIC), Singapore, pp.35-38
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