Abstract | ||
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Sample-time error between channels degrades resolution of time-interleaved analog-to-digital converters (TIADCs). A calibration method implemented in mixed circuits with low-complexity and fast-convergence is proposed in this paper. The algorithm for detecting sample-time error, which is widely applied to wide-sense stationary input signals, is based on correlation. The detected sample-time error is corrected by a voltage-controlled sampling switch. Experimental result of a 2-channel 200-MS/s 14-bit TIADC shows that the signal-to-noise-and-distortion ratio improves 19.1 dB, and the spurious-free dynamic range improves 34.6 dB for a 70.12-MHz input after calibration. The convergence time of the calibration is about 20000 sampling intervals. |
Year | DOI | Venue |
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2013 | 10.1587/elex.10.20130882 | IEICE ELECTRONICS EXPRESS |
Keywords | Field | DocType |
sample-time error, analog-to-digital converter, calibration, time-interleaved | Flight dynamics (spacecraft),Computer science,Electronic engineering,Analog-to-digital converter,Calibration | Journal |
Volume | Issue | ISSN |
10 | 24 | 1349-2543 |
Citations | PageRank | References |
3 | 0.52 | 0 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Bei Yu | 1 | 656 | 74.07 |
Chixiao Chen | 2 | 13 | 5.20 |
Fan Ye | 3 | 34 | 21.14 |
Junyan Ren | 4 | 154 | 41.40 |