Title :
Nonlinear distortion in current-steering D/A-converters due to asymmetrical switching errors
Author :
Clara, Martin ; Wiesbauer, Andreas ; Klatzer, Wolfgang
Author_Institution :
Infineon Technol. AG, Villach, Austria
Abstract :
Asymmetrical switching errors introduce even harmonic distortion products in the differential output signal of a current-steering NRZ D/A-converter. Dynamic element matching techniques, originally intended to shape the mismatch induced nonlinearity into wide-band noise, can even worsen the dynamic performance of such converters due to their increased switching activity. A simple mathematical model to formalize this effect is presented and verified with simulations.
Keywords :
current-mode circuits; digital-analogue conversion; harmonic distortion; integrated circuit noise; switching transients; asymmetrical switching errors; current-steering DAC; differential output signal; dynamic element matching; dynamic performance; harmonic distortion; mathematical model; mismatch induced nonlinearity; nonlinear distortion; switching activity; wide-band noise; Circuit simulation; Clocks; Harmonic distortion; Integrated circuit noise; Mathematical model; Noise shaping; Nonlinear distortion; Optical signal processing; Switches; Wideband;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328187
