NDLI: CMOS-based gas sensor: SoC approach

Content Provider	IEEE Xplore Digital Library
Author	Mohd-Yasin, F. Tye, K.F. Lee, C.Y. Reaz, M.B.L.
Copyright Year	2005
Description	Author affiliation: Fac. of Eng., Multimedia Univ., Selangor (Mohd-Yasin, F.)
Abstract	Summary form only given. The design of CMOS-based SAW gas sensor with a system on chip (SoC) approach is presented in this paper. The SAW sensor devices typically run at RF, requiring most design to have complex signal conditioning circuitry. Our approach attempts to simplify the design while operating at 354 MHz. An algorithm has been developed to get the optimized solution for the SAW sensor's design parameters. In the simulations the tungsten trioxide $(WO_{3})$ film is used as a sensing element to detect hydrogen sulfide $(H_{2}S).$ The signal processing circuitry is designed using TSMC 0.35mum technology. It could detect the input which is in the form of frequency ranging from 300 MHz to 400 MHz. Simulation data show that this design has 30% reduced power and 10 time lesser die size, compare to two existing works. The CMOS SAW gas sensor is designed using the Mentor Graphics design tools based on TSMC 0.35 mum technology. It shows the layout of the entire system. Numerous simulations have been performed to get the optimized design. The results obtained based on different number of IDT finger pairs and overlap length are shown. Finally, the final output (in voltage) from the signal conditioning circuitry is presented
Starting Page	635
Ending Page	637
File Size	817896
Page Count	3
File Format	PDF
ISBN	0780392108
DOI	10.1109/ICASIC.2005.1611408
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-24
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gas detectors Surface acoustic waves Circuit simulation Signal design Signal processing algorithms Design optimization CMOS technology System-on-a-chip Radio frequency RF signals
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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