Naslov
Low-Sensitivity, Low-Noise, Band-Rejection and All-Pass Active-RC Filters

Autori
Jurišić, Dražen ; Mijat, Neven

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of The IEEE International Symposium on Industrial Electronics 2005 / Perić, Nedjeljko ; Petrović, Ivan ; Butković, Željko - Dubrovnik : Institute of Electrical and Electronics Engineers (IEEE), 2005, 1175-1178

Skup
The IEEE International Symposium on Industrial Electronics 2005

Mjesto i datum
Dubrovnik, Hrvatska, 20.05.2005. - 23.05.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
low-sensitivity and low-noise filter biquads; symmetrical bridged-T network

Sažetak
In this paper we introduce a new design procedure for low-sensitivity and low-noise filter biquads which have a symmetrical bridged-T passive-RC network. They are also low-power circuits, in that they use only one operational amplifier (opamp). The new design concept is based on the recently introduced "impedance tapering" method which was applied to allpole filters, whereas in this paper it is extended to the design of filters with finite zeros. Thus, it is applied to two commonly used filter sections suitable for the realization of band-rejection and all-pass filters with low and medium pole-Q factors. In the new design procedure, the topology and component count remain the same ; we just judiciously select the component values in order to reduce component tolerance sensitivity and improve noise performance. The sensitivity analysis is examined analytically and double-checked using PSpice Monte Carlo runs. In the PSpice noise analysis, a macro-model of the uA741 opamp is used. It is found that the minimum-sensitivity and minimum-noise filters coincide.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA