Title
A nonlinearity error calibration technique based on an opamp distortion modeling
Abstract
In this paper a new digital background distortion calibration technique based on an effective opamp distortion modeling is introduced. The gain curve of the amplifier is approximated using least square fitting method in which the unknown coefficients are estimated directly by using of a reference ADC, and consequently, extendibility toward higher order harmonics and fast calibration time are the major advantages of the proposed correction technique. The fitting process results confirm that the technique can be more effective in comparison to the correlation based methods which are based on injection a pseudo random noise sequence in the structure.
Year
DOI
Venue
2008
10.1109/APCCAS.2008.4746145
APCCAS
Keywords
Field
DocType
analogue-digital conversion,calibration,nonlinear distortion,operational amplifiers,random sequences,digital background distortion,higher order harmonics,least square fitting,nonlinearity error calibration,opamp distortion,pseudorandom noise sequence,reference ADC,Calibration,fitting process,least square,opamp distortion,pipelined ADC,reference ADC
Least squares,Pseudorandom noise,Nonlinear system,Computer science,Control theory,Electronic engineering,Nonlinear distortion,Distortion,Operational amplifier,Calibration,Amplifier
Conference
ISBN
Citations 
PageRank 
978-1-4244-2342-2
1
0.36
References 
Authors
6
2
Name
Order
Citations
PageRank
Armin Jalili172.20
Masoud Sayedi231.41