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Electrical Engineering

Explain the the characteristics of CMOS.

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CMOS Inverter Characterisitcs The complementary CMOS inverter is realized by the series connection of a p and ndevice as in fig 11 Fig 11 CMOS Inverter Fig 12 IV characteristics of PMOS NMOS Fig 13 Transfer Characteristics of CMOS Inverter characteristics In the below graphical representation fig2 The IV characteristics of the pdevice is reflected about xaxis This step is followed by taking the absolute values of the pdevice Vds and superimposing the two characteristics Solving Vinn and Vinp and IdsnIdsp gives the desired transfer characteristics of a CMOS inverter as in fig3 Noise Margins Noise margin is a parameter closely related to the inputoutput voltage characteristics This parameter allows us to determine the allowable noise voltage on the input of a gate so that the output will not be affected The specification most commonly used to specify noise margin or noise immunity is in terms of two parameters The LOW noise margin NML    See Answer
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