Wireless sensing by means of passive multistandard RFID tags

Author

Brenk, D. ; Essel, J. ; Heidrich, J. ; Weigel, R. ; Hofer, G. ; Holweg, G.

Author_Institution

Inst. for Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany

fYear

2009

fDate

25-28 Oct. 2009

Firstpage

61

Lastpage

64

Abstract

This paper presents a generic sensor interface built in a 0.13 Â¿m CMOS process capable of being applied in passive HF & UHF RFID Tags without any additional power supply. The sensor interface contains an ultra low-power successive approximation ADC that uses the capacitive charge redistribution technique for its integrated DAC. An on-chip temperature sensor and up to three additional sensor signals can be applied to the ADC. A conversion rate of 100 kSps is reached while consuming less than 1.5 Â¿A at 0.9 Volt supply voltage.

Keywords

analogue-digital conversion; radiofrequency identification; temperature sensors; wireless sensor networks; CMOS process; analog-to-digital converter; capacitive charge redistribution technique; generic sensor interface; on-chip temperature sensor; passive HF RFID tag; passive UHF RFID tag; size 0.13 mum; ultra low-power successive approximation ADC; wireless sensing; Humidity; Magnetic sensors; Passive RFID tags; RFID tags; Radio frequency; Radiofrequency identification; Temperature sensors; UHF measurements; Voltage; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2009 IEEE

Conference_Location

Christchurch

ISSN

1930-0395

Print_ISBN

978-1-4244-4548-6

Electronic_ISBN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2009.5398526

Filename

5398526