Title :
The nonidealities of multibit continuous-time sigma delta modulators
Author :
Samid, Lourans ; Manoli, Yiannos
Author_Institution :
Freiburg Univ., Germany
Abstract :
This paper discusses the influence of nonidealities on the continuous time multibit sigma delta modulators, such as clock jitter and RC-tolerance. Another aspect that is discussed in this paper is the power dissipation of the modulator with RZ- and NRZ-feedback realization. Calculation details and simulation results for a low-pass continuous time third order sigma delta modulator with an oversampling ratio of 32 are presented.
Keywords :
circuit feedback; circuit simulation; continuous time filters; jitter; low-pass filters; sigma-delta modulation; signal sampling; tolerance analysis; NRZ-feedback realization; RC-tolerance; RZ-feedback realization; clock jitter; continuous time multibit sigma delta modulators; low-pass continuous time third order sigma delta modulator; multibit continuous-time sigma delta modulator nonidealities; oversampling ratio; power dissipation; simulation; Chromium; Clocks; Delta modulation; Delta-sigma modulation; Feedback; Filters; Jitter; Quantization; Sampling methods; Signal to noise ratio;
Conference_Titel :
Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on
Conference_Location :
Sharjah
Print_ISBN :
0-7803-8163-7
DOI :
10.1109/ICECS.2003.1301905
