CMOS Complementary metal–oxide-semiconductor

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Presentation transcript:

CMOS Complementary metal–oxide-semiconductor CMOS is the combination of NMOS and PMOS in a single device. Means in CMOS both NMOS and PMOS are there in single device. CMOS technology is used in microprocessors, microcontrollers, static RAM, and other digital logic circuits. Two important characteristics of CMOS devices are high noise immunity and low power consumption.

The phrase "metal–oxide–semiconductor" is a reference to the physical structure of certain field-effect transistors, having a metal gate electrode placed on top of an oxide insulator, which in turn is on top of a semiconductor material.

Explanation for oscillation to occur

Two important criteria for oscillation to occur:- Loop Gain Aβ=1 And phase change:- Θ=3600

Oscillators classificationn:-

RC phase shift oscillator

LC Oscillators