A frequency independent method for adaptive correction of Time Interleaved Analog to Digital Converters |
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| Antoine Bonnetat, Jean-Michel Hodé, Dominique Dallet, Guillaume Ferré |
- Abstract:
- Time-Interleaved Analog-to-Digital Converters (TIADC) are well-known as an efficient solution to increase sampling rate. However manufacturing process introduces static errors which limit TIADC performance. In this paper, we propose to improve an existing method based on a fully blind digital solution using an adaptive least mean squares (LMS) filter to correct gain, offset and timing mismatch. Indeed, due to interpolation operation, that solution was not frequency independent. Therefore we propose a novel architecture which is still based on adaptive filtering while dealing with frequency limitation. Numerical simulation results will be provided to validate the efficiency of our method.
- Keywords:
- ADC, TI-ADC, LMS filtering, Interleaved mismatches correction
- Download:
- IMEKO-TC4-2013-148.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2013
- Title:
- 19th IMEKO TC4 Symposium Measurements of Electrical Quantities (together with 17th TC4 IWADC Workshop on ADC and DAC Modelling and Testing)
- Place:
- Barcelona, SPAIN
- Time:
- 18 July 2013 - 19 July 2013