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Research Article | 13-December-2017

Nanocrystalline ZnO based MEMS Gas Sensors with CMOS ASIC for Mining Applications

transmitting the output of the gas sensor, a voltage controlled oscillator (VCO) chip integrated with a low noise amplifier has been fabricated in 0.35μm CMOS technology to convert the voltage output of the gas sensor to desirable frequency. The power consumption of the chip has been obtained to be around 3mW. The amplifier gain is set suitably ~13 to apply the desirable control voltage (~1.2V-3.2V)to the VCO. The noise of the amplifier has been obtained to be around 2μV/Hz1/2. The output frequency of the

N.P Futane, P. Bhattacharyya, S. Barma, C. Roychaudhuri, H. Saha

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 430–442

Research paper | 13-December-2017

DEVELOPMENT AND CHARACTERIZATION OF SURFACE MICRO-MACHINED MEMS BASED VARACTOR

Subha Chakraborty, A. Bhattacharya, Ashesh Ray Chaudhuri, T.K. Bhattacharyya

International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 1, 94–107

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