HARDWARE IMPLEMENTATION OF AN ADC ERROR COMPENSATION USING NEURAL NETWORKS

Hervé Chanal
Abstract:
A compensation technique for Analog-to-Digital Converter (ADC) based on a neural network is proposed. The implementation is done both in software and in a hardware description language. The latter is targeted for a massively parallel ASIC. The training of the neural network is done by learning a Look Up Table generated by processing the output of the ADC for sine waves inputs. Then, the effective number of bits (ENOB) is computed over a large range of frequencies for the raw data of a 100MS/s ADC and for the compensated data. These results are used to compare various neural network architecture and the effects of the approximations made for the hardware implementation.
Download:
IMEKO-IWADC-2011-05.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
IWADC 2011
Title:

16th IMEKO International Workshop on ADC Modeling and Testing - Data Converter Design, Modeling and Testing (together with IEEE ADC Forum) (IWADC)

Place:
Orvieto, ITALY
Time:
30 June 2011 - 01 July 2011