Review of the Biasing Schemes for Differential Transconductors


Jirayuth          Mahattanakul

Department of Electrical Engineering, Faculty of Engineering

Mahanakorn University of Technology, Bangkok, Thailand 10530

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Two biasing schemes, namely voltage biasing and current biasing, for differential transconductor are reviewed and compared.  Analytically, it is shown in this paper that, contrary to popular belief, it is not always the case that fully-balanced operation in differential transconductor requires fully-balanced input signal.  The advantage and disadvantage of these two biasing schemes are also discussed.



Keywords: Analogue Signal Processing, Analogue Integrated Circuit, Transconductor Circuit, Biasing Technique

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