Title :
Efficient Polynomial Inversion for the Linearization of Pipeline ADCs
Author :
Nuzzo, Pierluigi ; De Bernardinis, Fernando ; Terreni, Pierangelo
Author_Institution :
Dept. of Inf. Eng., Pisa Univ.
Abstract :
We present an efficient solution to the digital enhancement of the characteristic of pipeline analog-to-digital converters (ADCs) given estimates for non-linearity behaviors. A third order polynomial model is assumed for non-linearity and several inversion mechanisms are analyzed in terms of complexity and power consumption. Two efficient implementations based on a predictor-corrector scheme and on Newton-Raphson iterations are presented. Missing codes appearing after linearization are emphasized and the benefits of increasing resolution are shown. Limitations of linearization techniques are finally reported in terms of achievable ENOB and SFDR
Keywords :
Newton-Raphson method; analogue-digital conversion; circuit complexity; linearisation techniques; predictor-corrector methods; Newton-Raphson iterations; analog-to-digital converter; digital enhancement; linearization techniques; pipeline ADC; polynomial inversion; predictor-corrector scheme; third order polynomial model; Analog-digital conversion; Distortion; Energy consumption; Error correction; Linearization techniques; Pipelines; Polynomials; Redundancy; Sampling methods; Signal resolution;
Conference_Titel :
Research in Microelectronics and Electronics 2006, Ph. D.
Conference_Location :
Otranto
Print_ISBN :
1-4244-0157-7
DOI :
10.1109/RME.2006.1689959
