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Accurate and simple modeling of amplifier dc gain nonlinearity in switched-capacitor circuits

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2 Author(s)
Yavari, M. ; Electr. Eng. Dept., Amirkabir Univ. of Technol., Tehran ; Rodriguez-Vazquez, A.

This paper presents an accurate and simple model for dc gain nonlinearity of operational amplifiers used in the switched-capacitor circuits such as the sigma-delta modulators. The proposed model can simply be used in the time-domain system level simulation of sigma-delta modulators to evaluate the effect of amplifier's dc gain nonlinearity on the overall linearity of the modulator as well as in the other switched- capacitor circuits as explored in the paper.

Published in:

Circuit Theory and Design, 2007. ECCTD 2007. 18th European Conference on

Date of Conference:

27-30 Aug. 2007