Ponencia
Study of Non-Linear S/H Operation in Switched-Current Circuits Using Volterra Series - Application to BandPass Sigma-Delta Modulators
Autor/es | Rosa Utrera, José Manuel de la
Pérez Verdú, Belén Medeiro Hidalgo, Fernando Río Fernández, Rocío del Rodríguez Vázquez, Ángel Benito |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Fecha de publicación | 2001 |
Fecha de depósito | 2018-11-13 |
Publicado en |
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Resumen | This paper analyses the transient behaviour of
SwItched-current (SI) memory cells placed at the
front-end of high-speed A/D interfaces. Based on the
Volterra series method, the non-linear sampling process
occurring in ... This paper analyses the transient behaviour of SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. Based on the Volterra series method, the non-linear sampling process occurring in such cells is studied and closed-form expressions are obtained for the Total Harmonic Distortion (THD) and the intermodulation distortion. The analysis is extended to the case of BandPass ΣΔ Modulators (BP-ΣΔMs) using Fully-Differential (FD) SI memory cells. As a result, the third-order intermodulation distortion at the output of the modulator is derived. Time-domain simulations and experimental measurements taken from a 0.8μm CMOS 4th-order BP-ΣΔM silicon prototype validate the study. |
Cita | Rosa Utrera, J.M.d.l., Pérez Verdú, B., Medeiro Hidalgo, F., Río Fernández, R.d. y Rodríguez Vázquez, Á.B. (2001). Study of Non-Linear S/H Operation in Switched-Current Circuits Using Volterra Series - Application to BandPass Sigma-Delta Modulators. En Proc. Design Circuits and Integrated Systems Conference, Oporto (Portugal). |
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