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Title: A Sub-1V Fourth-Bandpass Delta-Sigma Modulator
Authors: 國立臺灣師範大學電機工程學系
Hsiang-Hui Chang
Chien-Hung Kuo
Ming-Huang Liu
Shen-Iuan Liu
Issue Date: 1-Dec-2003
Publisher: Springer Verlag (Germany)
Abstract: A sub-1V fourth-order bandpass delta-sigma modulator is presented in this paper. Using the switched opamp technique enables the modulator to operate at only 0.8 V supply voltage without using voltage multipliers or bootstrapping switches. A two-path structure is applied to relax the settling requirement. Implemented in a 0.25-μm one-poly, five-metal standard CMOS process, the prototype modulator exhibits a signal-to-noise-plus-distortion ratio (SNDR) of 58.2 db and a dynamic range (DR) of 64 db in a 60 KHz signal bandwidth centered at 1.25 MHz while consuming 2.5 mW and occupying an active area of 2.11 mm2.
ISSN: 0925-1030
Other Identifiers: ntnulib_tp_E0610_01_006
Appears in Collections:教師著作

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