Duty-Cycle Measurement and Correction Technique in 90-nm CMOS

A concept of pulsewidth modification is used to vary the duty cycle. Analog technique with feedback loop is applied to correct the duty cycle of any circuit without using more power. This technique works at the frequencies where most of the digital techniques does not work. Additional noise and degradation in sensitivity in a receiver rises due to non 50% duty cycle and even order harmonics which is eliminated. Pulsewidth modification cell is used for expansion and contraction of pulsewidth. Push pull inverter is used as an amplifier to amplify and bias the analog valtage.