Title :
Power-up calibration techniques for double-sampling ΔΣ modulators
Author :
Yu, Weimin ; Temes, Gabor C.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA
Abstract :
Two new start-up DAC calibration techniques are proposed for double-sampling DeltaSigma modulators. The first one is a modification of the existing calibration technique, while the second technique is proposed specifically for double-sampling DeltaSigma modulators. Dynamic element matching is used to eliminate "intra-DAC" mismatches, and digital correction for the remaining "inter-DAC" mismatches.
Keywords :
calibration; delta-sigma modulation; digital circuits; digital correction; double-sampling DeltaSigma modulators; dynamic element matching; interDAC mismatch; intraDAC mismatch; power-up calibration techniques; start-up DAC calibration technique;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1572
