Open AccessOrthogonal polynomials non‐linearity compensation for a digital VCO‐based ADC
Author(s) -
Zhang Y.,
ElSankary K.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.0717
Subject(s) - voltage controlled oscillator , compensation (psychology) , convergence (economics) , control theory (sociology) , linearity , series (stratigraphy) , orthogonal polynomials , computer science , mathematics , electronic engineering , voltage , algorithm , engineering , artificial intelligence , electrical engineering , mathematical analysis , economics , biology , psychology , paleontology , control (management) , economic growth , psychoanalysis
An improved compensation method for an all‐standard‐cell voltage‐controlled oscillator (VCO)‐based ADC is presented in this Letter. The proposed compensation uses closed‐form orthogonal polynomials bases instead of power series ones. With these more powerful bases, the cross interaction between different basis is eliminated which leads to better resolution, lower order of compensation series, and shorter convergence time of the adaptive algorithm.