A low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/60982

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题名:	A low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique
作者:	Chen, Hsin-Liang;Chen, Po-Sheng;Chiang, Jen-Shiun
贡献者:	淡江大學電機工程學系
关键词:	Chopper-stabilization;correlated double sampling low noise;low offset;pseudorandom chopper-stabilization;sigma–delta modulator
日期:	2010-01
上传时间:	2011-10-15 01:11:35 (UTC+8)
出版者:	Piscataway: Institute of Electrical and Electronics Engineers
摘要:	This paper presents a low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique. The comparison of the noise-cancellation ability with the correlated double sampling and chopper-stabilization techniques is demonstrated; also, the noise performance of these cancellation techniques is observed and discussed. Using the proposed technique, the modulator achieves 92 dB of dynamic range and -135 dB of noise floor while consuming 950 ??W from a 3-V supply. Based on the experimental results, the pseudorandom chopper-stabilization technique has a DC offset voltage that is 6 dB lower than that of the chopper-stabilization technique, and retains a thermal noise floor that is 1.6 dB lower than that of the correlated double sampling technique.
關聯:	IEEE Transactions on Circuits and Systems. Part 1: Regular Papers 56(12), pp.2533-2543
DOI:	10.1109/TCSI.2009.2018922
显示于类别:	[電機工程學系暨研究所] 期刊論文

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