Title :
Distortion modeling of active-RC lossy integrator by Volterra series method
Author :
Miao, Yingwu ; Zhang, Yuxing
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, the distortion of an active-RC lossy integrator is modeled by using Volterra series method. The opamp used in the integrator is divided into different nonlinear stages and their nonlinear coefficients are obtained easily by calculating the Volterra kernel of corresponding stage. The rules of cascade connection and feedback in Volterra method are employed to derive the distortion factors. The results obtained in the paper are suitable to investigate the distortion behaviors of the active-RC lossy integrator quickly. The accuracy of this modeling was verified by comparing the theoretical results with transistor level simulation.
Keywords :
RC circuits; Volterra series; distortion; feedback; Volterra kernel; Volterra series method; active-RC lossy integrator; cascade connection rules; distortion modeling; feedback; nonlinear coefficients; nonlinear stages; Analog circuits; Analytical models; Equations; Harmonic distortion; Integrated circuit modeling; Mathematical model; feedback amplifier; harmonic distortion; lossy integrator; nonlinear distortion;
Conference_Titel :
Information and Automation (ICIA), 2011 IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4577-0268-6
Electronic_ISBN :
978-1-4577-0269-3
DOI :
10.1109/ICINFA.2011.5949036
