Title :
Low voltage sigma-delta modulators
Author_Institution :
Texas A&M University
Abstract :
Sigma delta modulators are nice solutions to achieve high resolution with relatively simple analog circuits,Sigma delta are based on the oversampling technique, If the sampling frequency is higher than the Nyquist limit only a fraction of the quantization noise power falls in the signal band,A digital filter which rejects the out-of-band noise is required to increase the effective number of bits, Modern technologies allow higher and higher frequency of operation either in digital and in analog sections + For signals with a relatively small band it is possible to trade speed with resolution,Oversampling ratio + OSR
Keywords :
delay circuits; integrating circuits; low-power electronics; resonators; switched capacitor networks; integrating-two-path architecture; lossless-discrete integrator; low-voltage implementations; switched capacitor resonators; two-delay-loop stages; voltage-mode pseudo-N-path architecture;
Conference_Titel :
Low Power/Low Voltage Mixed-Signal Circuits and Systems, 2001. (DCAS-01). Proceedings of the IEEE 2nd Dallas CAS Workshop on
Conference_Location :
Plano, TX, USA
Print_ISBN :
0-7803-6624-7
DOI :
10.1109/DCAS.2001.920977
