TY - GEN
T1 - Low-sensitivity, low-power fourth-order band-pass active-RC allpole filter using impedance tapering
AU - Jurišić, Dražen
AU - Moschytz, George S.
AU - Mijat, Neven
PY - 2001
Y1 - 2001
N2 - In this paper the design of low sensitivity band-pass (BP) active resistance-capacitance (RC) filters using impedance tapering is presented. 4th-order band-pass filters are considered. The design procedure for low-sensitivity low-pass (LP) prototype second-order class 4 Sallen and Key active-RC allpole filters, using impedance tapering, has already been published. In this paper a low-pass to band-pass (LP-BP) transformation is applied to an impedance tapered 2nd-order LP filter, and a 4th-order BP filter is constructed. The component values, selected for impedance tapering, account for the considerable decrease in sensitivity to component tolerances for the LP as well as for the BP filter. As an example, a Chebyshev 4 th-order BP filter is realized, and the sensitivities are analysed. Schoeffler sensitivity measure is used as a basis for comparison, and Monte Carlo runs are performed as a double-check. A considerable improvement in sensitivity is achieved, both for the BP filter as well as well as for the original LP prototype.
AB - In this paper the design of low sensitivity band-pass (BP) active resistance-capacitance (RC) filters using impedance tapering is presented. 4th-order band-pass filters are considered. The design procedure for low-sensitivity low-pass (LP) prototype second-order class 4 Sallen and Key active-RC allpole filters, using impedance tapering, has already been published. In this paper a low-pass to band-pass (LP-BP) transformation is applied to an impedance tapered 2nd-order LP filter, and a 4th-order BP filter is constructed. The component values, selected for impedance tapering, account for the considerable decrease in sensitivity to component tolerances for the LP as well as for the BP filter. As an example, a Chebyshev 4 th-order BP filter is realized, and the sensitivities are analysed. Schoeffler sensitivity measure is used as a basis for comparison, and Monte Carlo runs are performed as a double-check. A considerable improvement in sensitivity is achieved, both for the BP filter as well as well as for the original LP prototype.
KW - Allpole filters
KW - BP filters
KW - LP-BP transformation
KW - Low-sensitivity active filters
UR - http://www.scopus.com/inward/record.url?scp=77956379371&partnerID=8YFLogxK
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AN - SCOPUS:77956379371
SN - 0780370570
SN - 9780780370579
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
SP - 815
EP - 818
BT - ICECS 2001 - 8th IEEE International Conference on Electronics, Circuits and Systems
T2 - 8th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2001
Y2 - 2 September 2001 through 5 September 2001
ER -