Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chen, Fu-Chuang | en_US |
dc.contributor.author | Hsieh, Chih-Lung | en_US |
dc.date.accessioned | 2014-12-08T15:08:52Z | - |
dc.date.available | 2014-12-08T15:08:52Z | - |
dc.date.issued | 2009-09-01 | en_US |
dc.identifier.issn | 1549-7747 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1109/TCSII.2009.2027956 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/6756 | - |
dc.description.abstract | Op-amps are crucial components in sigma-delta modulators (SDMs). As device dimensions and supply voltages continue to scale down, it is increasingly critical to determine a suitable op-amp dc gain. If the dc gain is set too high, then the op-amp consumes too much power; if the dc gain is too small, then nonlinear distortion becomes serious. However, there exists no efficient approach for selecting dc gains. In this brief, we propose to use a nonlinear function to model nonlinear op-amp dc gain curves. Then, this nonlinear function is employed to derive an SDM nonlinear distortion model as a function of SDM system parameters. The obtained SDM nonlinear distortion model can subsequently be used to compute the minimum required op-amp dc gain such that nonlinear distortions are kept under a tolerable value. The nonlinear dc gain curve model and the SDM nonlinear distortion model proposed in this brief are verified by behavior simulations and transistor-level simulations. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Nonlinear distortion | en_US |
dc.subject | op-amp dc gain | en_US |
dc.subject | sigma-delta modulator (SDM) | en_US |
dc.title | Modeling Harmonic Distortions Caused by Nonlinear Op-Amp DC Gain for Switched-Capacitor Sigma-Delta Modulators | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/TCSII.2009.2027956 | en_US |
dc.identifier.journal | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | en_US |
dc.citation.volume | 56 | en_US |
dc.citation.issue | 9 | en_US |
dc.citation.spage | 694 | en_US |
dc.citation.epage | 698 | en_US |
dc.contributor.department | 電控工程研究所 | zh_TW |
dc.contributor.department | Institute of Electrical and Control Engineering | en_US |
dc.identifier.wosnumber | WOS:000269777400002 | - |
dc.citation.woscount | 4 | - |
Appears in Collections: | Articles |
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