Title :
A single-amplifier biquad active filter
Author :
Hamilton, T. ; Sedra, A.
fDate :
7/1/1972 12:00:00 AM
Abstract :
A single-amplifier circuit is introduced and shown to be capable of realizing any second-order minimum-phase voltage transfer function while maintaining an isotopic structure. Sensitivity analysis demonstrates that the single-amplifier biquad (SAB) is comparable to other state-of-the-art active filters employing more amplifiers. A bandpass SAB together with an extra amplifiers enables the realization of right-half-plane zeros.
Keywords :
Active filters; Active networks; Active filters; Circuit synthesis; Frequency; Impedance; Network synthesis; Poles and zeros; Polynomials; Stability; Transfer functions; Voltage;
Journal_Title :
Circuit Theory, IEEE Transactions on
DOI :
10.1109/TCT.1972.1083474
