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A Low Voltage and Low Power Current-Mode Analog Computational Circuit

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Abstract

A new current-mode analog computational circuit is presented. The circuit can be digitally controlled to produce multiplying, squaring and inverse functions. The design is based on using MOSFETs operating in sub-threshold region to achieve ultra low power dissipation. The circuit is operated from a ±0.75 V DC supply. The proposed circuit has been simulated using Tanner in 0.35-μm TSMC CMOS process. Simulation results confirm the functionality of the circuit. The total power consumption is 2.3 μW, total harmonic distortion is 1.1 %, maximum linearity error is 0.3 % and the bandwidth is 2.3 MHz.

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Acknowledgements

The authors would like to thank King Abdulaziz City for Science and Technology for financial support under NSTIP funded Project No. 09-ELE782-04 and KFUPM for using all facilities to carry out this research.

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Authors and Affiliations

  1. Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia

    Munir Ahmad Al-Absi, Alaa Hussein & Muhammad TaherAbuelma’atti

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  1. Munir Ahmad Al-Absi
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  2. Alaa Hussein
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  3. Muhammad TaherAbuelma’atti
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Correspondence to Munir Ahmad Al-Absi.

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Al-Absi, M.A., Hussein, A. & TaherAbuelma’atti, M. A Low Voltage and Low Power Current-Mode Analog Computational Circuit. Circuits Syst Signal Process 32, 321–331 (2013). https://doi.org/10.1007/s00034-012-9446-6

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  • DOI: https://doi.org/10.1007/s00034-012-9446-6

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