A 0.5-V Biomedical System-on-a-Chip for Intrabody Communication System

Author

Lin, Yu-Tso ; Lin, Yo-Sheng ; Chen, Chun-Hao ; Chen, Hsiao-Chin ; Yang, Yu-Che ; Lu, Shey-Shi

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

58

Issue

2

fYear

2011

Firstpage

690

Lastpage

699

Abstract

A low-voltage (0.5 V) and low-power (4.535 mW) monolithic biomedical system-on-a-chip (SOC) consisting of a receiver, a transmitter, a microcontrol unit, and an analog-to-digital converter (ADC), implemented in a 0.18-μm CMOS technology for intrabody communication is first reported. The SOC can take command through a human body and activate (or turn on) the ADC and transmitter inside the SOC. Then, a biomedical signal is converted to digital format and transmitted to the RF gateway through a human body. With this transmission methodology and the proposed SOC circuit, it is much more power efficient than wireless communication. Moreover, since no antenna is required, the chip size of the SOC is only 1.5 mm², excluding the test pads.

Keywords

CMOS integrated circuits; analogue-digital conversion; biomedical communication; biomedical electronics; low-power electronics; medical signal processing; microcontrollers; system-on-chip; transceivers; ADC; CMOS technology; RF gateway; SOC circuit; analog-to-digital converter; biomedical signal; digital format; intrabody communication system; low-power monolithic biomedical system-on-a-chip; low-voltage monolithic biomedical system-on-a-chip; microcontrol unit; power 4.535 mW; receiver; size 0.18 mum; transmission methodology; transmitter; voltage 0.5 V; wireless communication; Biomedical; intrabody communication (IBC); system-on-a-chip (SOC); transceiver;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2010.2046571

Filename

5439859