Abstract
This paper presents the possibility of employing non-linear low-resolution DACs in the feedback paths of multi-bit second-order Sigma-Delta modulators. The proposed technique is particularly attractive in applications such as hearing aids, requiring a very large dynamic range and medium signal-to-noise-plus-distortion-ratio. As demonstrated through simulated results in which noise and mismatch effects are included, for the same over-sampling ratio, improvements in the order of 6-to-9 dB in the dynamic range can be achieved when comparing with the same topology employing linear-DACs.
Original language | English |
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Title of host publication | Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems |
Publisher | IEEE |
Publication date | 2008 |
Pages | 1107-1110 |
ISBN (Print) | 14-24-42181-0 |
DOIs | |
Publication status | Published - 2008 |
Event | 2008 IEEE 15th International Conference on Electronics, Circuits and Systems - Saint Julian's, Malta Duration: 31 Aug 2008 → 3 Sept 2008 Conference number: 15 https://ieeexplore.ieee.org/xpl/conhome/4664823/proceeding |
Conference
Conference | 2008 IEEE 15th International Conference on Electronics, Circuits and Systems |
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Number | 15 |
Country/Territory | Malta |
City | Saint Julian's |
Period | 31/08/2008 → 03/09/2008 |
Internet address |