Selection of the common-mode feedback network connection of fully differential Gm-C filters

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dc.contributor.authorMahattanakul, J.
dc.contributor.authorKhumsat, P.
dc.contributor.authorSurakampontorn, W.
dc.date.accessioned2026-08-06T09:58:16Z
dc.date.available2026-08-06T09:58:16Z
dc.date.issued2009-02-10
dc.description.abstractIt is well known that fully differential (FD) structures have many advantages over their single-ended counterparts. However, the main disadvantage of FD circuit is the potential instability caused by the inherent common-mode (CM) positive feedback loop. To solve such an instability problem, extra common-mode feedback (CMFB) and/or common-mode feedforward (CMFF) circuitries are often incorporated to stabilise the circuits. We present a systematic method for checking the stability condition and identifying the most suitable CMFB network connection for a particular FD Gm-C filter. It has been demonstrated that the CMFB network connection that provides highest CM rejection is not necessarily the conventional arrangement commonly used in FD Gm-C design. © The Institution of Engineering and Technology 2009.
dc.identifier.citationIet Circuits Devices and Systems, 3(1), 49-56, 2009
dc.identifier.doi10.1049/iet-cds:20080225
dc.identifier.issn1751858X
dc.identifier.other2-s2.0-59449106828
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/2490
dc.sourceIet Circuits Devices and Systems
dc.titleSelection of the common-mode feedback network connection of fully differential Gm-C filters
dc.typeArticle

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