Conference paper
The design of a 4’th order Bandpass Butterworth filter with one operational amplifier
A numerical design method is presented for the design of all pole band pass active-RC filters applying just one operational amplifier. The operational amplifier model used is the integrator model: ωt/s where ωt is the unity gain fre-quency. The design method is used for the design of a fourth order band pass filter with Butterworth poles applying just one operational amplifier coupled as a unity gain amplifier.
The unity gain amplifiers have the advantage of providing low power consumption, yielding a large dynamic range, sometimes simplifying the amplifier design and being usable over a larger frequency range than conventional constant gain amplifiers. The Schoeffler sensitivity index is used as a basis for a practical realization of the circuit.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2008 |
| Pages: | 327-330 |
| Proceedings: | ICSES'08 International Conference og Signals and Electronic Systems |
| ISBN: | 8388309471 , 9788388309472 , 8388309528 and 9788388309526 |
| Types: | Conference paper |
| DOI: | 10.1109/ICSES.2008.4673428 |
Active-RC Band-pass Butterworth Integrator Model Numerical Design Operational Amplifier Schoeffler Index Sensitivity Stability Unity Gain
Active filters Band pass filters Butterworth filters Circuits Design methodology Equations Frequency Nonlinear filters Operational amplifiers Poles and zeros RC circuits Schoeffler sensitivity index Transfer functions active filters all-pole band pass active-RC filters analogue integrated circuits band-pass filters fourth-order bandpass Butterworth filter design integrated circuit design integrating circuits integrator model low-power consumption low-power electronics operational amplifier model operational amplifiers sensitivity analysis unity gain amplifier
