METHOD AND APPARATUS FOR CORRECTING ELEMENT MISMATCH IN DIGITAL-TO-ANALOG CONVERTERS

摘要

A method and apparatus for correcting element mismatch in digital-to-analog converters includes the application of a data-weighted averaging algorithm for use with signals that are not lowpass. The method allows the signal band of interest to be situated anywhere in the frequency domain. Multiple pointers are used, and the number of pointers determines the frequency at which the element mismatch cancellation occurs.