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LANGHAMMER, L. JEŘÁBEK, J. POLÁK, J. PÁNEK, D.
Original Title
A Single-Ended and Fully-Differential Universal Current-Mode Frequency Filter with MO-CF and DACA Elements
Type
journal article in Web of Science
Language
English
Original Abstract
The paper presents proposal of the 2nd-order universal frequency filter. The presented filter operates in the current-mode and it is designed in the single-ended and fullydifferential form. Signal-flow graphs (SFG) method has been used in the proposal. The proposed filter is employing multioutput current followers (MO-CFs) and digitally adjustable current amplifiers (DACAs) as active elements. The pole frequency of the filter can be controlled without disturbing its quality factor. Functionality of the proposed filter in both S-E and F-D form has been verified by PSpice simulations using available models of used active elements and also by experimental measurements. A comparison of simulation and experimental results of the S-E and F-D form of the presented filter is made. Subsequently, a comparison of experimental results of both forms of the filter is also included.
Keywords
Active filters, Analog circuits, Current-mode circuits, Differential amplifiers, Frequency control
Authors
LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.; PÁNEK, D.
Released
31. 8. 2016
ISBN
1582-7445
Periodical
ADV ELECTR COMPUT EN
Year of study
16
Number
3
State
Romania
Pages from
43
Pages to
48
Pages count
6
BibTex
@article{BUT122908, author="Lukáš {Langhammer} and Jan {Jeřábek} and Josef {Polák} and David {Pánek}", title="A Single-Ended and Fully-Differential Universal Current-Mode Frequency Filter with MO-CF and DACA Elements", journal="ADV ELECTR COMPUT EN", year="2016", volume="16", number="3", pages="43--48", doi="10.4316/AECE.2016.03007", issn="1582-7445" }