A 7.2mW 15Mbps ASK CMOS transmitter for ingestible capsule endoscopy

Author

Diao, Shengxi ; Zheng, Yuanjin ; Gao, Yuan ; Heng, Chun-Huat ; Je, Minkyu

Author_Institution

Inst. of Microelectron., A*STAR (Agency for Sci. Technol. & Res.), Singapore, Singapore

fYear

2010

fDate

6-9 Dec. 2010

Firstpage

512

Lastpage

515

Abstract

This paper presents an amplitude shift keying (ASK) transmitter for high-quality imaging in ingestible capsule endoscopy application. A carrier frequency of 900MHz is generated by a complementary LC voltage-controlled oscillator, and directly modulated with a digital baseband ASK signal by switching on and off a driver amplifier (DA). The modulated signal is amplified by the DA and transmitted through an inductive coupling. The transmitter has been fabricated in 0.18μm CMOS process. A peak output power of 1dBm can be transmitted and power consumption is 7.2mW at a data rate of 15Mbps.

Keywords

CMOS integrated circuits; amplifiers; amplitude shift keying; biomedical electronics; biomedical equipment; biomedical optical imaging; body area networks; body sensor networks; data communication equipment; driver circuits; endoscopes; optical modulation; optical transmitters; ASK CMOS transmitter; CMOS process; amplitude shift keying transmitter; bit rate 15 Mbit/s; complementary LC voltage-controlled oscillator; data rate; digital baseband ASK signal; driver amplifier; frequency 900 MHz; high-quality imaging; ingestible capsule endoscopy; medical imaging devices; power 7.2 mW; power consumption; signal modulation; size 0.18 mum; wireless body area network; Amplitude shift keying; Biomedical imaging; Capacitors; Switches; Transmitters; Voltage-controlled oscillators; Wireless communication; 900MHz ISM band; ASK; High Data Rate; Ingestible Capsule Endoscopy; Low Power; Transmitter; Wireless Medical Imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (APCCAS), 2010 IEEE Asia Pacific Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-7454-7

Type

conf

DOI

10.1109/APCCAS.2010.5775071

Filename

5775071