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Title of Journal: Analog Integr Circ Sig Process

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Abbravation: Analog Integrated Circuits and Signal Processing

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Springer US

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DOI

10.1007/s12651-014-0160-7

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ISSN

1573-1979

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On the design of feedforward ΣΔ interface for MEM

Authors: Wenquan Liang Changchun Yang Donghai Qiao
Publish Date: 2012/03/15
Volume: 72, Issue: 1, Pages: 3-10
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Abstract

High order ΣΔ interface is popular for high resolution microelectromechanical systems Previous researches are mainly about the coefficients of the multiple feedback electromechanical ΣΔ modulators In the work presented here a systematic design method for the feed forward ΣΔ interfaces is proposed Simulations show that utilizing the proposed method feed forward and the optimized multiple feedback electromechanical sigmadelta modulators have almost the same SQNRs when a compensator pole is added to the feed forward structure However the feed forward structures have many advantages so the proposed method is a promising alternative method for the multiple feedback structure

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