Drazen Jurisic

Learn More
— This paper presents an optimum tuning procedure for high-order low-pass (LP) elliptic filters. Since elliptic filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the 'tuning biquad', in a cascade of biquads. It is shown by Matlab simulations that the best(More)
The design procedure of low-sensitivity, low-pass (LP) 2 nd-and 3 rd-order class-4 Sallen and Key active resistance-capacitance (RC) allpole filters, using impedance tapering, has already been published [1]. In this paper desensitization using impedance tapering is applied to HP and BP 2 nd-order filters. It is shown that HP filters have dual properties to(More)
The design procedure of low-sensitivity second-and third-order class-4 Sallen and Key active resistance-capacitance (RC) allpole filters, using impedance tapering, has already been published. There a ladder structure in the positive feedback loop of an operational amplifier was used. In this paper desensitization using impedance tapering is applied to(More)
— In this paper we introduce a new design procedure for low-sensitivity filter sections, which have a symmetrical passive-RC network in the operational amplifier (opamp) feedback loop. In the design procedure we apply impedance scaling to the symmetrical bridged-T and twin-T networks; they become "potentially symmetrical" [1]. The design of low-sensitivity(More)
To reduce the low-power allpole active-RC filter's output magnitude sensitivity to passive components, the " impedance tapering " design method was used. This design procedure has been applied to the design of 2 nd-and 3 rd-order low-pass (LP) (class 4) Sallen-and-Key filters and has already been published [1]. In this paper the active sensitivity analysis(More)
—In this paper a method of realizing elliptic filters using signal-flow graphs is presented. Elliptic filters having a minimum number of capacitors are compared with those having a higher number of capacitors. This number is particularly significant when comparing filters realized in balanced-to-ground and unbalanced form. The version with a canonic number(More)
—In this paper the dynamic-range optimization of a new class of low-pass active-RC filters, based on the leapfrog topology is presented, using the MATLAB Optimization Toolbox. The new structure is a simplified leapfrog structure with a reduced number of components, reduced complexity, and permitting a straightforward design procedure. It is most suitable(More)