An ultra-low power ring oscillator for passive UHF RFID transponders
In: 2010 53rd IEEE International Midwest Symposium on Circuits and Systems, 2010-08-01
Online
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Zugriff:
This paper presents a new two-stage CMOS voltage-controlled ring oscillator (VCO) designed for passive UHF RFID transponders. The goal is to explore the design space for the lowest possible power dissipation. A nano-power VCO capable of functioning as a local oscillator for the transponders is obtained by biasing the delay cells to operate in weak inversion region. Further power reduction is achieved by transistor sizing. Designed in a 90nm CMOS technology, the proposed circuit generates oscillation signals at 5.12 MHz and consumes only 24nW with 0.3V power supply.
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An ultra-low power ring oscillator for passive UHF RFID transponders
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Autor/in / Beteiligte Person: | Farzeen, Suzana ; Ren, Guoyan ; Chen, Chunhong |
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Zeitschrift: | 2010 53rd IEEE International Midwest Symposium on Circuits and Systems, 2010-08-01 |
Veröffentlichung: | IEEE, 2010 |
Medientyp: | unknown |
DOI: | 10.1109/mwscas.2010.5548887 |
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