Open AccessCalibration‐spur reduction in current‐steering DAC utilising digital‐and‐analogue hybrid return‐to‐zero (HRZ) method
Author(s) -
Kim W.C.,
Kim J.G.,
Ahn K.H.,
Kim G.J.,
Park S.H.,
Ryu S.T.
Publication year - 2015
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.2015.2161
Subject(s) - spur , calibration , dynamic range , reduction (mathematics) , noise reduction , electronic engineering , mathematics , engineering , physics , acoustics , statistics , geometry , structural engineering
A simple‐but‐efficient calibration‐spur reduction technique is introduced that utilises the digital‐and‐analogue hybrid return‐to‐zero (HRZ) method in a current‐steering DAC employing a round‐robin‐fashioned background current‐source calibration scheme. A simulation with a 12 b 500 MS/s current‐steering DAC showed 9.9 and 7.8 dB improvements in the spur‐free dynamic range and signal‐to‐noise + distortion ratio, respectively, owing to the reduced calibration spur by the proposed HRZ technique.