An ultra low power pH-monitoring IC with a duty-cycling wireless FM-transmitter

Author

Shiino, Yusuke ; Ito, H. ; Fujiwara, Toshihito ; Ishihara, Noboru ; Yamanouchi, Hisashi ; Tanabe, Hiroshi ; Nomura, Shunji ; Konishi, Tsuyoshi ; Machida, Kenji ; Masu, Kazuya

Author_Institution

Tokyo Inst. of Technol., Yokohama, Japan

fYear

2014

fDate

1-5 June 2014

Firstpage

882

Lastpage

885

Abstract

This paper proposes an ultra low power pH-monitoring IC featuring a wireless FM-transmitter with duty cycling operation and the use of an Ion Sensitive Field Effect Transistor (ISFET) for dentistry application. The IC achieves wireless communication and pH sensing under very low current consumption thanks to duty cycling operation and heavily stacked-transistor design. 0.18 μm CMOS process technology is used to fabricate a prototype chip, and current consumption of 2.0 μA was measured.

Keywords

CMOS integrated circuits; MOSFET; biomedical electronics; dentistry; ion sensitive field effect transistors; pH measurement; transmitters; CMOS process technology; ISFET; current 20 muA; dentistry application; duty-cycling wireless FM-transmitter; heavily stacked-transistor design; ion sensitive field effect transistor; pH sensing; size 0.18 mum; ultra low power pH-monitoring IC; very low current consumption; wireless communication; Current measurement; Frequency modulation; Integrated circuits; Sensors; Wireless communication; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2014 IEEE International Symposium on

Conference_Location

Melbourne VIC

Print_ISBN

978-1-4799-3431-7

Type

conf

DOI

10.1109/ISCAS.2014.6865277

Filename

6865277