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Título : Effect of Non-Linear Settling Error on The Harmonic Distortion of Fully-Differential Switched-Current BandPass Sigma-Delta Modulators
Autor : Rosa, José M. de la ; Pérez-Verdú, Belén ; Medeiro, Fernando ; Río, Rocío del; Rodríguez-Vázquez, Ángel
Palabras clave : Switched-Current Circuits
BandPass Sigma-Delta Modulators
Harmonic Distortion
Settling Error
Fecha de publicación : may-2001
Editor: Institute of Electrical and Electronics Engineers
Citación : J.M. de la Rosa, B. Pérez-Verdú, F. Medeiro, R. del Río and A. Rodríguez-Vázquez, “Effect of Non-Linear Settling Error on the Harmonic Distortion of Fully-Differential Switched-Current BandPass ΣΔ Modulators”. Proc. of the IEEE 2001 Int. Symp. Circuits and Systems, pp. I.340-I.343, Sidney (Australia), May 2001.
Resumen: This paper presents a detailed study of the effect of the non-linear settling on the harmonic distortion of BandPass SD Modulators (BP-ΣΔMs) realized using Fully Differential (FD) SwItched-current (SI) circuits. Based on the analysis of building blocks, closed-form expressions are derived for the third-order intermodulation distortion of BP-ΣΔMs due to defective settling, on the one hand, and to the non-linearities of the sampling process, on the other. Time-domain simulations and measurements taken from a 0.8μm CMOS 4th-order BP-ΣΔM silicon prototype validate our approach.
URI : http://hdl.handle.net/10261/3781
Referencias: 0-7803-6685-9/01
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