An ASK demodulator for data telemetry in biomedical application

Bin Liang, Zhi Yang, Wentai Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

This paper presents a demodulator design for Amplitude Shift Keying (ASK) based wireless telemetry system in biomedical application. It supports up to 300Kbits per second (bps) data rate and detects envelope with modulation index of 1% or more. The design includes a single-to-differential OTA, a current mode full-wave rectifier, a log-domain peak detector, a variable-gain amplifier and a comparator. The rising and falling time constants of our design are tunable through varying off-chip components to support a wide range of modulation indexes and data rate. The circuit blocks are designed and simulated in Taiwan Semiconductor Manufacturing Company (TSMC) 0.18μm process and occupying 120x420μm2. The power consumption is 1mW with 1.8V supply voltage.

Original languageEnglish (US)
Title of host publicationProceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Subtitle of host publicationEngineering the Future of Biomedicine, EMBC 2009
PublisherIEEE Computer Society
Pages1561-1564
Number of pages4
ISBN (Print)9781424432967
DOIs
StatePublished - Jan 1 2009
Event31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 - Minneapolis, MN, United States
Duration: Sep 2 2009Sep 6 2009

Publication series

NameProceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009

Other

Other31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
CountryUnited States
CityMinneapolis, MN
Period9/2/099/6/09

Fingerprint Dive into the research topics of 'An ASK demodulator for data telemetry in biomedical application'. Together they form a unique fingerprint.

Cite this