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High Output Impedance Current-Mode Universal First-Order Filter With Three Inputs Using One DDCC


Jiun-Wei Horng   Pages 1 - 5 ( 5 )


A current-mode universal first-order filter with three input terminals and one output terminal is presented. The proposed circuit uses one differential difference current conveyor (DDCC), one grounded capacitor and two resistors. This circuit offers the following advantageous features: high output impedance, employing only one active component, using a grounded capacitor, the versatility to synthesize any type of first-order filter transfer functions. Each standard first-order filter function can be obtained by using only one current input signal from the proposed circuit.


Active filter, current conveyor, current-mode, first-order, frequency response, universal filter.


Chung Yuan Christian University, Department of Electronic Engineering

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