A Two-Step Multi-Stage Noise-Shaping Incremental Analog-to-Digital Converter (Invited Paper)

Jia Sheng Huang, Yu Cheng Huang, Chia Wei Kao, Che Wei Hsu, Shiuh Hua Wood Chiang, Chia Hung Chen

研究成果: Conference contribution同行評審

摘要

High resolution wide bandwidth applications require power-efficient high-accuracy data converters. Multi-Stage Noise-Shaping (MASH) is a useful technique for the design of stable high-order ?S modulators. In this paper, we propose a two-step MASH incremental ADC (IADC). In the first step it performs a third-order coarse quantization. Re-using the same hardware, in the second step the circuit performs fine quantization as a second-order IADC. Thus, it achieves fifth-order noise shaping with only three amplifiers. For a low oversampling ratio OSR = 32, the signal-to-noise ratio can be boosted by about 30 dB. The scheme is suitable for wide bandwidth applications.

原文English
主出版物標題2020 IEEE 63rd International Midwest Symposium on Circuits and Systems, MWSCAS 2020 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
頁面158-161
頁數4
ISBN(電子)9781538629161
DOIs
出版狀態Published - 8月 2020
事件63rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2020 - Springfield, United States
持續時間: 9 8月 202012 8月 2020

出版系列

名字Midwest Symposium on Circuits and Systems
2020-August
ISSN(列印)1548-3746

Conference

Conference63rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2020
國家/地區United States
城市Springfield
期間9/08/2012/08/20

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