DocumentCode :
3733955
Title :
Ultra low energy and area efficient charge pump with automatic clock controller in 65 nm CMOS
Author :
Babak Mohammadi;Joachim Rodrigues
Author_Institution :
Department of Electrical and Information Technology, Lund University, Lund
fYear :
2015
Firstpage :
1
Lastpage :
4
Abstract :
A low power CMOS charge pump (CP) is proposed utilizing a new combination of charge transferring switches for a faster start-up, higher efficiency and lower reverse charge sharing. A low cost feedback mechanism observes the output voltage level and automatically switches off the clock after passing a threshold, which reduces energy dissipation by 62%. It is shown that by using one capacitor per stage, the proposed architecture reaches higher voltages compared to the competitive architectures when driving capacitive loads. The design is manufactured in a 65 nm technology, and measurement results confirm a 120% higher voltage compared to the conventional Dickson CP at 400 mV with identical area cost. The measured minimum operating voltage and highest charge pumping efficiency are 290 mV and 86%, respectively.
Keywords :
"Clocks","Capacitors","Charge pumps","Delays","Transistors","Energy dissipation","Frequency measurement"
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2015 IEEE Asian
Type :
conf
DOI :
10.1109/ASSCC.2015.7387491
Filename :
7387491
Link To Document :
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