Efficient double-sampled cascaded ΣΔ modulator topologies for low OSRs

IEICE Electronics Express

Omid Shoaei¹  Mohammad Yavari¹ 

[1] IC Design Laboratory, ECE Department, University of Tehran

关键词: Sigma-delta modulators;    switched-capacitor circuits;    double sampling;   

DOI  :  10.1587/elex.2.404

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)This paper presents novel double-sampling cascaded sigma-delta modulator topologies for wideband applications. The proposed modulator structures employ finite impulse response (FIR) noise transfer function (NTF) to achieve the aggressive noise shaping with an additional zero at the half of the sampling frequency to alleviate the quantization noise folding. Cascading of the proposed modulator structures is very simple without any additional circuit requirements.

【 授权许可】

Unknown