A ΔΣ modulator with 3-Bit, 37-level pre-detective dynamic quantization

Chien Hung Kuo*, Kuan Hsun Wang

*此作品的通信作者

研究成果: 書貢獻/報告類型會議論文篇章

摘要

In this paper, a high-resolution delta-sigma modulator with a pre-detective dynamic quantizer is proposed. A 37-level quantization can be achieved by using only a 3-bit quantizer in the proposed dynamic quantizer. In the proposed structure, a signal detector is added at the input of the presented modulator to pre-detect the magnitude of the sampled input and switch the dynamic quantizer to the corresponding quantization range. With the proposed technique, the quantization level can be greatly increased, and the number of comparators will hence be substantially reduced for a high-level quantization. The resulting resolution of delta-sigma modulators can thus be significantly promoted without consuming much power and area. The proposed delta-sigma modulator is implemented in a TSMC 0.18-μm 1P6M CMOS process. The signal-to-noise plus distortion ratio is 101.2 dB in a signal band of 25 kHz. The power consumption is 1.68 mW at a 1.8 V supply voltage.

原文英語
主出版物標題2012 10th IEEE International Conference on Semiconductor Electronics, ICSE 2012 - Proceedings
頁面574-577
頁數4
DOIs
出版狀態已發佈 - 2012 十二月 1
事件2012 10th IEEE International Conference on Semiconductor Electronics, ICSE 2012 - Kuala Lumpur, 马来西亚
持續時間: 2012 九月 192012 九月 21

出版系列

名字2012 10th IEEE International Conference on Semiconductor Electronics, ICSE 2012 - Proceedings

其他

其他2012 10th IEEE International Conference on Semiconductor Electronics, ICSE 2012
國家/地區马来西亚
城市Kuala Lumpur
期間2012/09/192012/09/21

ASJC Scopus subject areas

  • 硬體和架構
  • 電氣與電子工程

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