CDTA based universal transadmittance filter |
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Authors: | Nisar A Shah Munazah Quadri Syed Z Iqbal |
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Affiliation: | 1. Department of Electronics and Instrumentation Technology, The University of Kashmir, Hazratbal, Srinagar, 190006, India 2. Department of Physics, S.P. College, M.A. Road, Srinagar, 190001, India
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Abstract: | A new transadmittance-mode (TM) universal filter with three inputs and a single output is presented. The circuit employs only two current differencing transconductance amplifiers (CDTAs), two capacitors one of which is permanently grounded and as many resistors. The proposed circuit realizes lowpass (LP), highpass (HP), bandpass (BP), notch and allpass (AP) functions from the same configuration. Both the active and passive sensitivities are no more than unity. The natural frequency ωo and bandwidth ωo/Q are independently and electronically tunable. PSPICE simulation results are included. |
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