Title :
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
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;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865277
