Realization of Leapfrog Filters Using Current Differential Buffered Amplifiers

Worapong TANGSRIRAT; Wanlop SURAKAMPONTORN; Nobuo FUJII

Realization of Leapfrog Filters Using Current Differential Buffered Amplifiers

Worapong TANGSRIRAT, Wanlop SURAKAMPONTORN, Nobuo FUJII

Full Text Views

0

Cite this

Summary :

In this paper, is shown an approach to realize leapfrog structures obtained from proto-type passive RLC ladder filters using current differencing buffered amplifiers (CDBA) as active elements. The use of the CDBA's provides advantages that the realization procedure is simplified and the number of active components required is reduced. The approach is quite suitable for the realization of band-pass ladder filters, which generally requires a complicated structure to simulate LC series and/or parallel resonant branches by the conventional opamp-based leapfrog filters. A simple circuit configuration of the CDBA suitable for high frequency and low power supply voltage applications is also presented. As design examples, a fifth-order Butterworth lowpass ladder filter and a sixth-order Chebyshev bandpass ladder filter are designed. The effectiveness and the correctness of the proposed approach and the characteristics of the proposed filters are verified and examined through computer simulation.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E86-A No.2 pp.318-326

Publication Date: 2003/02/01

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)

Category

Cite this

Copy

Worapong TANGSRIRAT, Wanlop SURAKAMPONTORN, Nobuo FUJII, "Realization of Leapfrog Filters Using Current Differential Buffered Amplifiers" in IEICE TRANSACTIONS on Fundamentals, vol. E86-A, no. 2, pp. 318-326, February 2003, doi: .
Abstract: In this paper, is shown an approach to realize leapfrog structures obtained from proto-type passive RLC ladder filters using current differencing buffered amplifiers (CDBA) as active elements. The use of the CDBA's provides advantages that the realization procedure is simplified and the number of active components required is reduced. The approach is quite suitable for the realization of band-pass ladder filters, which generally requires a complicated structure to simulate LC series and/or parallel resonant branches by the conventional opamp-based leapfrog filters. A simple circuit configuration of the CDBA suitable for high frequency and low power supply voltage applications is also presented. As design examples, a fifth-order Butterworth lowpass ladder filter and a sixth-order Chebyshev bandpass ladder filter are designed. The effectiveness and the correctness of the proposed approach and the characteristics of the proposed filters are verified and examined through computer simulation.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e86-a_2_318/_p

Copy

@ARTICLE{e86-a_2_318,
author={Worapong TANGSRIRAT, Wanlop SURAKAMPONTORN, Nobuo FUJII, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Realization of Leapfrog Filters Using Current Differential Buffered Amplifiers},
year={2003},
volume={E86-A},
number={2},
pages={318-326},
abstract={In this paper, is shown an approach to realize leapfrog structures obtained from proto-type passive RLC ladder filters using current differencing buffered amplifiers (CDBA) as active elements. The use of the CDBA's provides advantages that the realization procedure is simplified and the number of active components required is reduced. The approach is quite suitable for the realization of band-pass ladder filters, which generally requires a complicated structure to simulate LC series and/or parallel resonant branches by the conventional opamp-based leapfrog filters. A simple circuit configuration of the CDBA suitable for high frequency and low power supply voltage applications is also presented. As design examples, a fifth-order Butterworth lowpass ladder filter and a sixth-order Chebyshev bandpass ladder filter are designed. The effectiveness and the correctness of the proposed approach and the characteristics of the proposed filters are verified and examined through computer simulation.},
keywords={},
doi={},
ISSN={},
month={February},}

Copy

TY - JOUR
TI - Realization of Leapfrog Filters Using Current Differential Buffered Amplifiers
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 318
EP - 326
AU - Worapong TANGSRIRAT
AU - Wanlop SURAKAMPONTORN
AU - Nobuo FUJII
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E86-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2003
AB - In this paper, is shown an approach to realize leapfrog structures obtained from proto-type passive RLC ladder filters using current differencing buffered amplifiers (CDBA) as active elements. The use of the CDBA's provides advantages that the realization procedure is simplified and the number of active components required is reduced. The approach is quite suitable for the realization of band-pass ladder filters, which generally requires a complicated structure to simulate LC series and/or parallel resonant branches by the conventional opamp-based leapfrog filters. A simple circuit configuration of the CDBA suitable for high frequency and low power supply voltage applications is also presented. As design examples, a fifth-order Butterworth lowpass ladder filter and a sixth-order Chebyshev bandpass ladder filter are designed. The effectiveness and the correctness of the proposed approach and the characteristics of the proposed filters are verified and examined through computer simulation.
ER -