Analysis and Design of Multiple - Bit High - Order -
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0-89791-851-7$5.00 1997 IEEE 1 Analysis and Design of Multiple-Bit High-Order Modulator Hao-Chiao Hong, Bin-Hong Lin, and Cheng-Wen Wu Department of Electrical Engineering National Tsing Hua University Hsinchu, Taiwan Abstract|The high-order modulator is an appropriate approach for high-bandwidth, high-resolution A/D conversion. However, non-ideal e ects such as the nite opamp gain and the capacitor mismatch have great impacts on its performance at a low oversampling ratio. To achieve greater performance under the inevitable non-ideal e ects, we explore several multiple-bit schemes, based on our CIQE high-order architecture, to remove the non-ideal deterioration. Design rules of these multiple-bit schemes are developed and veri ed by extensive simulations.
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تاریخ انتشار 1997