Simple Evaluation of the Nonlinearity Signature of an ADC Using a Spectral Approach | Zendy

E. Peralías | Zendy; María Ángeles Jalón | Zendy; A. Rueda | Zendy

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Simple Evaluation of the Nonlinearity Signature of an ADC Using a Spectral Approach

Author(s) -

E. Peralías,

María Ángeles Jalón,

A. Rueda

Publication year - 2008

Publication title -

vlsi design

Language(s) - English

Resource type - Journals

eISSN - 1065-514X

pISSN - 1026-7123

DOI - 10.1155/2008/657207

Subject(s) - converters , histogram , integral nonlinearity , nonlinear system , differentiable function , signature (topology) , simple (philosophy) , algorithm , successive approximation adc , polynomial , classification of discontinuities , computer science , mathematics , electronic engineering , artificial intelligence , capacitor , engineering , physics , mathematical analysis , philosophy , geometry , epistemology , quantum mechanics , voltage , electrical engineering , image (mathematics)

This work presents a new method to estimate the nonlinearity characteristics of analog-to-digital converters (ADCs). The method is based on a nonnecessarily polynomial continuous and differentiable mathematical model of the converter transfer function, and on the spectral processing of the converter output under a sinusoidal input excitation. The simulation and experiments performed on different ADC examples prove the feasibility of the proposed method, even when the ADC nonlinearity pattern has very strong discontinuities. When compared with the traditional code histogram method, it also shows its low cost and efficiency since a significant lower number of output samples can be used still giving very realistic INL signature values

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