A Resistorless realization of the first-order all-pass filter |
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Authors: | S. Minaei O. Cicekoglu |
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Affiliation: | 1. Department of Electronics and Communication Engineering , Dogus University , Acibadem, Kadikoy 34722, Istanbul, Turkey sminaei@dogus.edu.tr;3. Cihangir Purtelas , Sok. 39/5, 80090 Istanbul, Turkey |
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Abstract: | All-pass filters are widely used to shift the phase of an analog signal without altering its magnitude. In this study, a new realization of all-pass filter using one current controlled conveyor (CCCII), one operational amplifier (OP-AMP) and two capacitors is presented. The proposed circuit does not use any resistors thus it is suitable for easy integration. Also the pole frequency of the proposed circuit can be tuned electronically. Simulation results are included to verify theory. |
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Keywords: | All-pass filters Current controlled conveyor Operational amplifier |
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