A 0.8V 1.52MHz MSVC Relaxation Oscillator with Inverted Mirror Feedback Reference for UHF RFID

Author

Barnett, Ray ; Liu, Jin

Author_Institution

Texas Instrum., Inc., Dallas, TX

fYear

2006

Firstpage

769

Lastpage

772

Abstract

A 0.8V nano-power relaxation oscillator for EPC standard UHF RFID transponder is presented. A low-voltage inverted mirror feedback V_GS/R reference is proposed to provide correlated current and voltage references for the oscillator. As a result, the oscillator frequency is solely determined by the resistor in the reference and the timing capacitor to meet the frequency tolerance specification. Meanwhile, to minimize the power consumption, a minimum-supply-voltage-constraint (MSVC) design criterion is proposed to minimize the required supply voltage. The inverted mirror feedback technique reduces the headroom requirement of the traditional V_GS/R to meet the MSVC. Measurement results show that the entire oscillator requires a minimum supply voltage of 0.8V in the prototype chip fabricated in CMOS 0.13mum technologies. The measured oscillation frequency is 1.52MHz with 400nA total current consumption. The chip area is 13400mum²

Keywords

CMOS integrated circuits; low-power electronics; nanoelectronics; radiofrequency identification; relaxation oscillators; 0.13 micron; 0.8 V; 1.52 MHz; 400 nA; CMOS technologies; EPC; MSVC; UHF RFID transponder; inverted mirror feedback reference; minimum supply voltage constraint; prototype chip; relaxation oscillator; voltage references; CMOS technology; Feedback; Frequency; Mirrors; Radiofrequency identification; Resistors; Semiconductor device measurement; Timing; Transponders; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2006. CICC '06. IEEE

Conference_Location

San Jose, CA

Print_ISBN

1-4244-0075-9

Electronic_ISBN

1-4244-0076-7

Type

conf

DOI

10.1109/CICC.2006.320975

Filename

4115067