A low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique
學年 98
學期 1
出版（發表）日期 2010-01-01
作品名稱 A low-offset low-noise sigma-delta modulator with pseudorandom chopper-stabilization technique
作品名稱（其他語言）
著者 Chen, Hsin-Liang; Chen, Po-Sheng; Chiang, Jen-Shiun
單位 淡江大學電機工程學系
出版者 Piscataway: Institute of Electrical and Electronics Engineers
著錄名稱、卷期、頁數 IEEE Transactions on Circuits and Systems. Part 1: Regular Papers 56(12), pp.2533-2543
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.
關鍵字 Chopper-stabilization;correlated double sampling low noise;low offset;pseudorandom chopper-stabilization;sigma–delta modulator
語言 en
ISSN 1549-8328
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Chen, Hsin-Liang
審稿制度
國別 USA
公開徵稿
出版型式 紙本
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