New low current mismatch and wide output dynamic range charge pump
عنوان مقاله: New low current mismatch and wide output dynamic range charge pump
شناسه ملی مقاله: ICEE19_433
منتشر شده در نوزدهمین کنفرانس مهندسی برق ایران در سال 1390
شناسه ملی مقاله: ICEE19_433
منتشر شده در نوزدهمین کنفرانس مهندسی برق ایران در سال 1390
مشخصات نویسندگان مقاله:
Elias Soleiman - School of Electrical and Computer Engineering, College Of Engineering, University Of Tehran, Tehran, Iran
Mahmoud kamarei
خلاصه مقاله:
Elias Soleiman - School of Electrical and Computer Engineering, College Of Engineering, University Of Tehran, Tehran, Iran
Mahmoud kamarei
Conventional charge pumps suffer from current mismatch that increases reference spur in Phase Locked Loops (PLL). Some previously introduced methods reduce this mismatch by cost of output voltage dynamic range limitation. This paper proposes a new charge pump structure with low current mismatch while having wide output dynamic range. High accurate current matching is done using high-gain low power amplifiers in feedback configuration where it’s wide output dynamic range is obtained by using triode-region transistors in current mirrors. Circuit level simulation results in standard 0.18μm CMOS technology with 1.8 V supply voltage has been provided to verify the effectiveness of the proposed structure
کلمات کلیدی: charge pump, spur suppression, current mismatch
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/154006/