Title :
Multiplexed noise shaping structures for delta-sigma modulators
Author :
Czarnul, Z. ; Yesilyurt, A.G. ; Temes, G.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
A new structure for realising a multiplexed noise-shaping A/D convertor is proposed. It improves the performance of first- or second-order Delta Sigma modulators by employing additional feedback paths for suppressing the quantiser error. The structure, its theoretical analysis, and simulations confirming the improved resolution are presented.
Keywords :
analogue-digital conversion; feedback; modulators; multiplexing; ADC; delta-sigma modulators; feedback paths; first-order modulators; multiplexed noise-shaping A/D convertor; quantiser error suppression; resolution improvement; second-order modulators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911450
