Name
Abstract | ||
|---|---|---|
A modification of the background digital calibration procedure for A/D converters by Li and Moon is proposed, based on a method to improve the speed of convergence and the accuracy of the calibration. The procedure exploits a colored random sequence in the calibration algorithm, and can be applied both for narrowband input signals and for baseband signals, with a slight penalty on the analog bandwidth of the converter. By improving the signal-to-calibration-noise ratio of the statistical estimation of the error parameters, our proposed technique can be employed either to improve linearity or to make the calibration procedure faster. A practical method to generate the random sequence with minimum overhead with respect to a simple PRBS is also presented. Simulations have been performed on a 14-bit pipeline A/D converter in which the first 4 stages have been calibrated, showing a 15 dB improvement in THD and SFDR for the same calibration time with respect to the original technique. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1155/2008/453218 | EURASIP J. Adv. Sig. Proc. |
Keywords | Field | DocType |
14-bit pipeline,background digital calibration procedure,fast digital background calibration,calibration time,original technique,practical method,proposed technique,calibration algorithm,d converter,simple technique,calibration procedure,random sequence | Signal processing,Computer science,Pseudorandom binary sequence,Artificial intelligence,Computer vision,Baseband,Narrowband,Signal-to-noise ratio,Algorithm,Spurious-free dynamic range,Bandwidth (signal processing),Electrical engineering,Calibration | Journal |
Volume | Issue | ISSN |
2008, | 1 | 1687-6180 |
Citations | PageRank | References |
1 | 0.36 | 7 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Francesco Centurelli | 1 | 56 | 15.93 |
| Pietro Monsurrò | 2 | 48 | 12.78 |
| A. Trifiletti | 3 | 433 | 63.29 |