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A CMOS voltage regulator for passive RFID tag ICs

✍ Scribed by Jianping Guo; Ka Nang Leung

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
1020 KB
Volume
40
Category
Article
ISSN
0098-9886

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✦ Synopsis

SUMMARY

A low‐power voltage regulator for passive RFID tag ICs is proposed in this paper. It consists of a self‐biased mutually compensated voltage reference, a low dropout (LDO) voltage regulation circuit and a power‐on‐reset (POR) circuit. It is fabricated in a commercial 0.18−µm CMOS technology and applied to a passive UHF RFID tag IC. The total quiescent current is 700 nA under a 1.8‐V supply. The output voltage of the regulator is 1.45 V with load capability of 50 µA. The temperature coefficients of the voltage reference and the output voltage are only 9 and 43 ppm/^∘^C, respectively. A POR signal with width pulse of 150 ns is generated for the digital part in the tag IC. Copyright © 2010 John Wiley & Sons, Ltd.

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