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HERENCSÁR, N. MINAEI, S. KOTON, J. YUCE, E. VRBA, K.
Original Title
New Resistorless and Electronically Tunable Realization of Dual-Output VM All-Pass Filter Using VDIBA
Type
journal article in Web of Science
Language
English
Original Abstract
In this paper, a new active element called voltage differencing inverting buffered amplifier (VDIBA) is presented. Using single VDIBA and a capacitor, a new resistorless voltage-mode (VM) first-order all-pass filter (APF) is proposed, which provides both inverting and non-inverting outputs at the same configuration simultaneously. The pole frequency of the filter can be electronically controlled by means of bias current of the internal transconductance. No component-matching conditions are required and it has low sensitivity. In addition, the parasitic and loading effects are also investigated. By connecting two newly introduced APFs in open loop a novel second-order APF is proposed. As another application, the proposed VM APF is connected in cascade to a lossy integrator in a closed loop to design a four-phase quadrature oscillator. The theoretical results are verified by SPICE simulations using TSMC 0.18 um level-7 CMOS process parameters with +-0.9 V supply voltages. Moreover, the behavior of the proposed VM APF was also experimentally measured using commercially available integrated circuit OPA860 by Texas Instruments.
Keywords
Analog signal processing; all-pass filter; electronically tunable circuit; four-phase quadrature oscillator; loading effect; resistorless filter; voltage-mode; voltage differencing inverting buffered amplifier (VDIBA)
Authors
HERENCSÁR, N.; MINAEI, S.; KOTON, J.; YUCE, E.; VRBA, K.
RIV year
2013
Released
7. 1. 2013
Publisher
Springer
ISBN
0925-1030
Periodical
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
Year of study
74
Number
1
State
Kingdom of the Netherlands
Pages from
141
Pages to
154
Pages count
14
URL
https://link.springer.com/article/10.1007%2Fs10470-012-9936-2
Full text in the Digital Library
http://hdl.handle.net/11012/69947
BibTex
@article{BUT93563, author="Norbert {Herencsár} and Shahram {Minaei} and Jaroslav {Koton} and Erkan {Yuce} and Kamil {Vrba}", title="New Resistorless and Electronically Tunable Realization of Dual-Output VM All-Pass Filter Using VDIBA", journal="ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING", year="2013", volume="74", number="1", pages="141--154", doi="10.1007/s10470-012-9936-2", issn="0925-1030", url="https://link.springer.com/article/10.1007%2Fs10470-012-9936-2" }