VLSI (STATIC POWER CONSUMPTION IN CMOS)

 STATIC POWER CONSUMPTION IN CMOS:



  • The current that flows between the power rails when there is no switching activity i.e, there is no switching taking place from 0--->1 or 1---->0 at the input it is more like a steady-state.
  • There is, unfortunately, a leakage current flowing through the reverse-biased diode junctions of the transistors, located between the source or drain and the substrate.
  •  This contribution is, in general, very small and can be ignored.
  • however this leakage current is increased by temperature. Their value increases with increasing junction temperature, and this occurs in an exponential fashion.

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