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  • CMOS-based gas sensor: SoC approach

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    72887_1.pdf (802.5Kb)
    Author(s)
    Mohd-Yasin, F
    Tye, KF
    Lee, CY
    Reaz, MBI
    Griffith University Author(s)
    Mohd-Yasin, Faisal
    Year published
    2005
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    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 (WO3) film is used as a sensing element to detect hydrogen sulfide (H2S). The signal processing circuitry is designed using TSMC 0.35mum technology. It could detect the input ...
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    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 (WO3) film is used as a sensing element to detect hydrogen sulfide (H2S). 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
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    Conference Title
    2005 6th International Conference on ASIC Proceedings, Books 1 and 2
    Volume
    2
    DOI
    https://doi.org/10.1109/ICASIC.2005.1611408
    Copyright Statement
    © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
    Subject
    Electrical and Electronic Engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/46701
    Collection
    • Conference outputs

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