Design of Squarer Circuit in Sub-threshold Mode

  • Authors

    • Bindu Thakral
    • Arti Vaish
    • Rama Koteswara Rao Alla
    2018-04-03
    https://doi.org/10.14419/ijet.v7i2.11.11004
  • Sub Threshold Region, Weak Inversion, Translinear Principle, Squarer Circuit, MOS

  • Historically, analog designs have been assumed as a voltage mode based signal processing. However, the necessity of high speed circuits operating at reduced supply voltage has lead to a development of new circuit topology referred as current-mode designs. For low power low voltage designs the applications using translinear principle based circuits has become an area of research and interest. It has wide application in nonlinear signal processing and to build basic active elements. Mode of MOS transistor used in analog circuit realization of is important parameter deciding the performance of the circuit. In this paper, a squarer circuit is proposed based on sub threshold-mode MOS transistors exhibiting the exponential current-voltage characteristic. The simulations have been performed on model files of TSMC 0.18 micrometer technology with the help of ELDO Simulator.

     

  • References

    1. [1] Gilbert, B. (1975). Translinear circuits: A proposed classification. Electronics letters 11, 14-16..

      [2] Payne, A., & Toumazou, C. (1996, May). Linear transfer function synthesis using non-linear IC components. In IEEE International Symposium on Circuits and Systems ISCAS'96, Vol. 1, pp. 53-56. IEEE.

      [3] Mulder, J., Van Der Woerd, A. C., Serdijn, W. A., & Van Roermund, A. H. M. (1996). Current-mode companding/spl radic/x-domain integrator. Electronics letters 32, 198-199.

      [4] Eskiyerli, M., & Payne, A. (2000). “Square root domain†filter design and performance. Analog Integrated Circuits and Signal Processing 22, 231-243.

      [5] Mead, C. A., Analog VLSI and Neural Systems. Addison Wesley: Reading, MA, 1989.

      [6] Mead, C. (1990). Neuromorphic electronic systems. Proceedings of the IEEE 78, 1629-1636.

      [7] Vittoz, E., & Fellrath, J. (1977). CMOS analog integrated circuits based on weak inversion operations. IEEE journal of solid-state circuits 12, 224-231.

      [8] Vittoz, E. A., Micropower techniques, In Y. P. Tsividis and P. Antognetti, eds., VLSI Circuits for Telecommunications, Prentice Hall: 1985.

      [9] Andreou, A. G., & Boahen, K. A. (1989). Synthetic neural circuits using current-domain signal representations. Neural Computation 1, 489-501.

      [10] Andreon, A. G. (1990), Synthetic neural systems using current-mode circuits, in Proceedings of the IEEE International Symposium on Circuits and Systems, New Orleans, pp. 2428-2432.

      [11] Andreou, A. G. (1995). Low power analog VLSI systems for sensory information processing. IEEE ISCAS-95 Tutorial Book on Multimedia Communications.

      [12] Boahen, K. A. (1996), Retinomorphic vision systems, in proc. Of MicroNeuro-96, IEEE Computer Society Press: Los Alamitos, CA.

      [13] Seevinck, E., & Wiegerink, R. J. (1991). Generalized translinear circuit principle. IEEE Journal of Solid-State Circuits 26, 1098-1102.

      [14] Vittoz, E., & Fellrath, J. (1977). CMOS analog integrated circuits based on weak inversion operations. IEEE Journal of Solid-State Circuits 12, 224-231.

      [15] Minch, B. A. (2008). MOS translinear principle for all inversion levels. IEEE Transactions on Circuits and Systems II: Express Briefs, 55, 121-125.

      [16] Thakral B. (2015), Design of Low Power Current Mode Square-Root Circuit. International Journal of Engineering and Manufacturing 4, pp. 23-29.

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  • How to Cite

    Thakral, B., Vaish, A., & Koteswara Rao Alla, R. (2018). Design of Squarer Circuit in Sub-threshold Mode. International Journal of Engineering & Technology, 7(2.11), 38-40. https://doi.org/10.14419/ijet.v7i2.11.11004