On-line digital correction of the harmonic distortion in analog-to-digital converters

Author

Eduri, U. ; Maloberti, F.

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

837

Abstract

A digital calibration technique for the on-line (real-time) correction of the Integral Nonlinearity (INL) in any Analog-to-Digital Converter (ADC) has been presented in this paper. MATLAB simulations substantiating the technique achieved around 20 dB improvement on a modeled 12-bit ADC with an initial Spurious-Free Dynamic Range of 80 dBFS. As a bonus, this technique can also correct for the offset error. The price paid for these benefits is the inclusion of an identical extra ADC, and some additional DSP circuitry

Keywords

analogue-digital conversion; calibration; error correction; harmonic distortion; 12 bit; DSP circuit; MATLAB simulation; analog-to-digital converter; digital calibration; harmonic distortion; integral nonlinearity; offset error correction; on-line digital correction; real-time correction; spurious-free dynamic range; Aging; Analog-digital conversion; Antenna measurements; Calibration; Distortion measurement; Dynamic range; Frequency measurement; Harmonic distortion; Master-slave; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on

Print_ISBN

0-7803-7057-0

Type

conf

DOI

10.1109/ICECS.2001.957604

Filename

957604