Title :
Design of high-frequency active RC-filters using passive compensation methods
Author :
Signell, S. ; Mossberg, Kåre
Author_Institution :
Dept. of Telecommun. Theory, R. Inst. of Technol., Stockholm, Sweden
Abstract :
Versatile methods for passive compensation of nonideal operational amplifiers used in high-frequency active RC-filters are presented. Two main filter building blocks, inverting and noninverting integrators, are made ideal for amplifiers having a single pole gain roll-off using an additional resistor for each integrator. The methods are applicable to all integrator-based filters, such as biquads and ladder filters, as well as some single amplifier biquads. Computer simulations and experimental results confirm the theories. An elliptic bandpass filter is considered as a design example
Keywords :
active filters; band-pass filters; compensation; HF active RC filters; amplifier biquads; design; elliptic bandpass filter; integrators; operational amplifiers; passive compensation; Band pass filters; Capacitors; Filtering theory; Frequency dependence; Impedance; Inverters; Narrowband; Paper technology; Performance gain; Resistors;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo
DOI :
10.1109/ISCAS.1988.15489
