Near‐threshold charge pump circuit using dual feedback loop | Zendy

Jalalifar M. | Zendy; Byun G.S. | Zendy

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Near‐threshold charge pump circuit using dual feedback loop

Author(s) -

Jalalifar M.,

Byun G.S.

Publication year - 2013

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2013.1304

Subject(s) - charge pump , dual (grammatical number) , feedback loop , dual loop , loop (graph theory) , control theory (sociology) , physics , threshold voltage , electronic engineering , optoelectronics , electrical engineering , materials science , voltage , computer science , engineering , transistor , mathematics , capacitor , control (management) , art , literature , computer security , artificial intelligence , combinatorics

A near‐threshold charge pump circuit suitable for a phase‐locked loop‐based frequency synthesiser is presented. The charge pump uses gate switches and dual feedback loops to achieve good up/down current matching characteristics in low‐voltage operation. The applied gate switches reduce the leakage current and the feedback loops provide a more stable operation. Post‐layout simulation results demonstrate that the proposed charge pump circuit consumes only 60 µW with a 0.5 V supply voltage. The charge pump circuit is implemented in a 0.13 µm CMOS process.

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