Title :
Error compensated oversampled sigma-delta A/D conversion technique
Author :
Burra, G. ; Chao, K.S.
Author_Institution :
Dept. of Electr. Eng., Texas Tech Univ., Lubbock, TX, USA
Abstract :
An oversampled multi bit sigma-delta modulator based on error compensation techniques for the D/A converter in the feedback loop is proposed. The circuit utilizes an accurate voltage reference generator to improve the linearity of the D/A converter. Low over-sampling ratios make it feasible for large signal bandwidths to be achieved in this converter
Keywords :
analogue-digital conversion; delta modulation; error compensation; modulators; D/A converter; error compensation techniques; feedback loop; large signal bandwidths; linearity; oversampled sigma-delta A/D conversion technique; oversampling ratios; sigma-delta modulator; voltage reference generator; Bandwidth; Circuits; Delta-sigma modulation; Error compensation; Feedback loop; Linearity; Noise shaping; Quantization; Signal resolution; Voltage;
Conference_Titel :
Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-0081-5
DOI :
10.1109/MWSCAS.1990.140831
