Performance Analysis and Low Power Design of Voltage Level-up Shifters

  • Abstract
  • Keywords
  • References
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  • Abstract

    Voltage level-up shifters are widely used in dual supply applications and it acts as an interface between main core and input-output units. Low power with efficient level-up shifter is designed by reducing the transistor count and the proposed level-up shifters are capable of converting from sub-threshold to above threshold level signal. The strength of pull-down networks and pull-up networks are enhanced by employing a couple of current mirror circuits. The simulation results of the proposed level shifter in 180nm technology yields a power dissipation of 95.79nw, propagation delay of 41.23ns for an input voltage of 0.4V and input frequency of 1MHz, low supply voltage VDDL=0.4V, high supply voltage VDDH=1.8V. Proposed 14T Level shifter in 90nm Technology demonstrates a power dissipation of 54.8nw, propagation delay of 28.8ns for an input voltage of 0.2V and input frequency of 1MHz, VDDL=0.2V, VDDH=1.2V.



  • Keywords

    Current mirrors, Dual supply voltages, Level-up shifter, Process variation, Sub threshold operation.

  • References

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Article ID: 22022
DOI: 10.14419/ijet.v7i4.19.22022

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