Patent attributes
A method for use in an analog circuit having a plurality of differential pairs of elements, wherein for each pair of the plurality of differential pairs of elements, the elements of the pair are designed to match but may have mismatch that induces error. The method includes, for each pair of at least two pairs of the plurality of differential pairs of elements: spectrally separating the mismatch-induced error of the pair from mismatch-induced error of a remainder of the plurality of differential pairs of elements, monitoring, by an analog-to-digital converter (ADC), an output of the analog circuit, and analyzing the monitored output to measure the mismatch-induced error of the pair.