IEICE Electronics Express
Online ISSN : 1349-2543
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Multi-stage sigma-delta ADC with noise-coupling technology
Rongshan WeiJing Yu
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2016 Volume 13 Issue 23 Pages 20160894

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Abstract

This paper proposes new structures of multi-stage noise-shaping (MASH) sigma-delta ADC by applying second-order noise-coupling technology to conventional MASH modulators. The proposed architectures take advantage of the extra noise-coupled path to achieve a second-order noise-shaping increase as well as save the number of active devices. Theoretical analysis and system-level simulation are given, and the implementation of the modulators is also analyzed. The new structures are suitable for broadband applications.

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© 2016 by The Institute of Electronics, Information and Communication Engineers
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