Title :
A novel continuous-time /spl Sigma//spl Delta/ modulator with a successive approximation multibit quantizer
Author :
Samid, Lourans ; Abu-ghazi, Mahmoud ; Manoli, Yiannos
Abstract :
This paper discusses the design of a low pass multibit sigma-delta modulator using a continuous-time (CT) loop filter and a successive approximation (SA) A/D converter as multibit quantizer in the sigma-delta-modulator. Thus extending the quantizer bits in order to reach a high signal to noise ratio does not massively increase the power dissipation and the area of the modulator. Calculation details and simulation results for low pass continuous time multibit sigma delta modulators are presented
Keywords :
continuous time filters; low-pass filters; sigma-delta modulation; analog-digital converter; continuous-time SigmaDelta modulator; continuous-time loop filter; low pass multibit sigma-delta modulator; successive approximation converter; successive approximation multibit quantizer; Automotive engineering; Bandwidth; Delta modulation; Delta-sigma modulation; Feedback; Filters; Power dissipation; Quantization; Signal design; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 2003 IEEE 46th Midwest Symposium on
Conference_Location :
Cairo
Print_ISBN :
0-7803-8294-3
DOI :
10.1109/MWSCAS.2003.1562218
