Brno University of Technology Digital Library (Brno University of Technology) · 2015 · 94 citations · 9 references
Open access
EngineeringElectrical EngineeringAnalog ElectronicsCircuit TheoryMicroelectronicsAnalog Integrated CircuitsCmos Circuit DesignCurrent-voltage CharacteristicsIntegrated Circuit DesignMixed-signal Integrated Circuit DesignOscillatorsAnalog Circuit DesignCmos Analog Circuit Design
Abstract. This article presents a simple current-mode quadrature oscillator using a single Current Differencing Transconductance Amplifier (CDTA) as the active element. The oscillation condition and oscillation frequency can be electronically controlled. The circuit structure is very simple, consisting of merely one CDTA, one resistor and two capacitors. The proposed circuit is suitable for IC architecture. The PSpice simulation and experimental results are shown, and the results agree well with the theoretical assumptions.
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