DocumentCode
3195190
Title
Modeling non-idealities of Sigma Delta ADC in simulink
Author
Lei Jian-ming ; Dai Xiao-wu ; Zou Xue-Cheng ; Zou Zhi-ge
Author_Institution
Dept. of Electron. of Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan
fYear
2008
fDate
25-27 May 2008
Firstpage
1040
Lastpage
1043
Abstract
Non-ideal behavior models of switched capacitor sigma delta ADC are presented. The modulator non-idealities such as operational amplifier parameters (GBW, colored noise, SR, saturation voltage and so on), clock jitter, capacitor mismatch, nonlinear switch on-resistance and are included. The operational amplifier nonlinear DC Gain is modeled with emphasis and simulation results show it introduces odd harmonic distortion.
Keywords
analogue-digital conversion; harmonic distortion; operational amplifiers; capacitor mismatch; clock jitter; harmonic distortion; nonlinear switch on-resistance; operational amplifier parameters; sigma delta ADC; simulink; Capacitors; Clocks; Colored noise; Delta-sigma modulation; Harmonic distortion; Jitter; Operational amplifiers; Strontium; Switches; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on
Conference_Location
Fujian
Print_ISBN
978-1-4244-2063-6
Electronic_ISBN
978-1-4244-2064-3
Type
conf
DOI
10.1109/ICCCAS.2008.4657946
Filename
4657946
Link To Document