Compensation of finite gain-bandwidth induced errors in continuous-time sigma-delta modulators
Compensation of finite gain-bandwidth induced errors in continuous-time sigma-delta modulators
复制标题
连续时间 Σ-Δ 调制器中有限增益带宽引起的误差的补偿
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
Y. Manoli
中科院分区：
文献类型：
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作者：
M. Ortmanns;F. Gerfers;Y. Manoli
本文介绍了一种可能的补偿有限增益带宽（GBW）引起的连续时间Σ-Δ调制器的误差。因此，一种新的模型，推导出一个有限的GBW相应的积分器增益误差和反馈回路延迟的影响减少。因此，可以通过一些修改来采用先前公开的用于补偿这些误差的方法。分析和仿真结果证实，并显示出可能的GBW减少约一个数量级相比，目前的设计。
This paper introduces a possible compensation for finite gain-bandwidth (GBW) induced errors in continuous-time sigma-delta modulators. Therefore, a novel model is derived which reduces the effect of a finite GBW to a corresponding integrator gain-error and feedback loop delays. Thus, previously published methods for the compensation of these errors can be adopted with some modification. The results are confirmed analytically and by simulations and show a possible GBW reduction of about one order of magnitude compared to current designs.