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2010•International Journal of Circuit Theory and ApplicationsRequires access

A CMOS voltage regulator for passive RFID tag ICs

Jianping Guo, Ka Nang Leung

Open publisher page 17 citations

Abstract

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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What this paper is about

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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Available abstract

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.

Key concepts: Low-dropout regulator, Dropout voltage, Voltage regulator, CMOS, Voltage reference, Electrical engineering, Voltage, Power supply rejection ratio

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