Title :
A digital calibration technique for DAC mismatches in delta-sigma modulators
Author :
Yu, Wenhuan ; Temes, Gabor C.
Author_Institution :
Dept. of EECS, Oregon State Univ. Corvallis, Corvallis, OR, USA
Abstract :
A digital calibration technique is proposed for DAC mismatches in delta-sigma (DeltaSigma) modulators. The delta-sigma modulator works as an incremental ADC in the calibration mode. The DAC mismatches are found by solving linear equations and are compensated digitally. The technique can be used in double-sampling delta-sigma modulators as well.
Keywords :
calibration; delta-sigma modulation; DAC mismatch; delta-sigma modulator; digital calibration technique; incremental ADC mode; Calibration; Capacitors; Clocks; Delta modulation; Digital modulation; Equations; Linearity; Sampling methods; Table lookup; Transfer functions;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5118011
