Abstract

This paper presents a voltage differencing transconductance amplifier (VDTA)-Gm floating inductor and its application to the design of a low pass (LP) filter and a band pass (BP) filter. This VDTA-Gm floating inductor uses only one VDTA and one Gm. Through small signal analysis, the total impedance of the VDTA-Gm floating inductor is calculated and matched with the impedance of a passive floating inductor. Then the active floating inductor is employed to build LP and BP filters of 1 MHz center frequency each. Finally, the characteristics of the filters are analyzed through Hspice simulation results.

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