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Ultra-low-power series voltage regulator for passive microwave RFID transponders

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2 Author(s)
De Vita, G. ; Dipt. di Ingegneria deirinformazione, Universita degli Studi di Pisa, Italy ; Iannaccone, G.

In this paper we present a series voltage regulator for long distance passive RFID transponders, operating in the 868/916 MHz and 2.45 GHz ISM frequency ranges. The circuit has been implemented in a 0.35μm BiCMOS technology. Measurements show that the voltage regulator can provide a regulated voltage of 0.6 V, for an output current from 0 to 5 μA, with a quiescent current of only 34 nA, a minimum voltage drop of 30 mV and an output resistance of 100 Ω. Measurements also show a very good PSRR, particularly in DC and at the operating frequency of the tag-reader system, where it is smaller than -58 dB and -54 dB, respectively.

Published in:

NORCHIP Conference, 2005. 23rd

Date of Conference:

21-22 Nov. 2005

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