Jiun-Wei Horng* Pages 242 - 246 ( 5 )
Background: A current-mode universal first-order filter with three input terminals and one output terminal is presented.
Methods: The proposed circuit uses one differential difference current conveyor (DDCC), one grounded capacitor and two resistors.
Results: 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.
Conclusion: 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.
Department of Electronic Engineering, Chung Yuan Christian University, Chung Li District, Taoyuan City, 32023