Title :
Multibit sigma-delta modulator with reduced sensitivity to DAC nonlinearity
Author :
Hairapetian, A. ; Temes, Gabor C. ; Zhang
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
5/23/1991 12:00:00 AM
Abstract :
A new architecture is presented for a multibit oversampled Sigma - Delta A/D convertor. A novel feedback arrangement is employed to reduce the sensitivity of the overall resolution to the nonlinearity of the multibus DAC. Simulations confirm the improved performance achieved by the proposed structure.
Keywords :
analogue-digital conversion; feedback; modulators; A/D convertor; DAC nonlinearity sensitivity reduction; feedback arrangement; multibit oversampled ADC; multibus DAC; sigma-delta modulator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910617
