OFFSET CALIBRATION FOR LOW POWER AND HIGH PERFORMANCE RECEIVER

摘要

Systems and methods for providing offset calibration for low power and high performance receivers are described herein. In one embodiment, a method for offset calibration comprises inputting a first voltage to a first input of a sample latch, and inputting a second voltage and an offset-cancelation voltage to a second input of the sample latch. The method also comprises adjusting the offset-cancelation voltage, observing an output of the sample latch as the offset-cancelation voltage is adjusted, and recording a value of the offset-cancelation voltage at which a metastable state (toggles between one and zero) is observed at the output of the sample latch. The method may be performed for each one of a plurality of different voltage levels for the first voltage to determine an offset-cancelation voltage for each one of the voltage levels.