DocumentCode :
2723846
Title :
A 700-μW single-chip IC for wireless continuous-time health monitoring in 0.18-μm CMOS
Author :
Teo, T. Hui ; Gopalakrishnan, P.K. ; Hwan, Y.S. ; Qian, X.B. ; Haridas, K. ; Pang, C.Y. ; Je, M.
Author_Institution :
Inst. of Microelectron., A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
fYear :
2009
fDate :
16-18 Nov. 2009
Firstpage :
361
Lastpage :
364
Abstract :
A sensor node was designed and implemented in 0.18 μm CMOS process. The sensor node consists of a sensor interface circuit, an analog-to-digital converter (ADC), a digital signal processor (DSP) unit and a radio-frequency (RF) transmitter unit. The sensor node was designed for use in a wireless health monitoring system. Minimal off-chip components are allowed in this implementation for improved user experience, which are antenna, crystal resonator and supply decoupling capacitors. Low-power low-voltage design techniques such as sub-threshold design were employed intensively to minimize the power consumption of the sensor node IC and maximize the battery life. The sensor consumes only about 700 μW at 0.7 V supply and it enables continuous-and real-time electrocardiogram (ECG) monitoring for more than 200 hours without changing the battery when a typical button-cell battery is used.
Keywords :
CMOS digital integrated circuits; analogue-digital conversion; antennas; biomedical electronics; digital signal processing chips; electrocardiography; health care; patient monitoring; transmitters; wireless sensor networks; analog-digital converter; antenna; continuous real time ECG monitoring; crystal resonator; digital signal processor unit; electrocardiogram; low power low voltage design; power 700 μW; radiofrequency transmitter unit; sensor interface circuit; sensor node; single chip IC; size 0.18 μm; subthreshold design; supply decoupling capacitors; voltage 0.7 V; wireless continuous time health monitoring; wireless health monitoring system; Analog-digital conversion; Batteries; CMOS integrated circuits; CMOS process; Digital signal processing; Digital signal processors; Monitoring; Radio frequency; Radio transmitters; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 2009. A-SSCC 2009. IEEE Asian
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4433-5
Electronic_ISBN :
978-1-4244-4434-2
Type :
conf
DOI :
10.1109/ASSCC.2009.5357170
Filename :
5357170
Link To Document :
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