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Variable gain amplifier circuit using titanium dioxide memristors

Variable gain amplifier circuit using titanium dioxide memristors

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A variable gain amplifier (VGA) topology utilising titanium dioxide (TiO2) memristors is presented. The circuit is analysed based on recently published charge-controlled and voltage-controlled memristor models. The analysis includes a theoretical prediction of total harmonic distortion for the amplifier as a figure of merit. The theoretical results are supported with SPICE circuit simulation including a memristor macromodel.

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