A 1-V 5-MHz Bandwidth 68.3-dB SNDR Continuous-Time Delta-Sigma Modulator With a Feedback-Assisted Quantizer.

Chan-Hsiang Weng,Yung-Yu Lin,Tsung-Hsien Lin

IEEE Transactions on Circuits and Systems I: Regular Papers（2017）

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摘要

A low-power continuous-time delta-sigma modulator (CTDSM) incorporating a multi-bit feedback-assisted quantizer (FBAQ) is presented in this paper. The proposed multi-bit quantizer is placed in a negative feedback loop to reduce the signal swing at its input. As a result, the number of comparator required for signal quantization is reduced. Furthermore, the modulator is optimized for low-voltage sw...

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关键词

Topology,Frequency modulation,Bandwidth,Quantization (signal),Clocks,Optimization

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