Naslov
Impedance tapering effects on "Low-Q" SAB band-pass active-RC filter

Autori
Jurišić, Dražen ; Mijat, Neven

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

Izvornik
Proceedings of the First International Workshop on Image and Signal Proceesing and Analysis (IWISPA 2000) in conjunction with 22nd International Conference on Information Technology Interfaces / Lončarić, Sven - Zagreb : Sveučilišni računski centar Sveučilišta u Zagrebu (Srce), 2000, 229-234

ISBN
953-96769-2-4

Skup
International Workshop on Image and Signal Processing and Analysis (1 ; 2000) & International Conference on Information Technology Interfaces ( 22 ; 2000)

Mjesto i datum
Pula, Hrvatska, 13.06.2000. - 16.06.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Allpole filters; biquadratic active filters; class 3 active filters for low-Q realization; low-sensitivity active filters

Sažetak
The design procedure of low-sensitivity active resistance-capacitance (RC) allpole filters, using impedance tapering, has already been published. The low-sensitivity filter sections already described in publication are class 4 (TT-SABB) Sallen and Key sections. In this paper class 3 (SAB) sections for low pole-Q realization are considered. Impedance tapering is applied on L-sections, which are situated in negative-feedback of operational amplifier in open-loop mode. L- sections are impedance scaled upwards, from the driving source to the negative amplifier input. Second-order band-pass filter is considered. Pole-Q factors for low-Q building blocks take their values up to, say, 5. The sensitivity to component tolerances of the circuit is shown to be small for any type of impedance tapering regardless of the gain-sensitivity product (GSP) value.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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