Floating Operational Transconductance Amplifier Based Grounded Impedance

Abstract

A technique to reproduce, in floating form, a given operational transconductance amplifier (OTA) based grounded impedance (GI) is presented. Unlike the back-to-back technique, the technique presented has the feature that the required additional matching constraints (i.e. in addition to those, if any, in the given GI) are independent of the original components, implying that the canonicity with regard to the number of capacitors and the single-element tunability, if any, in the given GI are fully retained in the resulting floating impedance.