New Resistorless and Electronically Tunable Realization of Dual-Output VM All-Pass Filter Using VDIBA

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F13%3APU99513" target="_blank" >RIV/00216305:26220/13:PU99513 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs10470-012-9936-2" target="_blank" >https://link.springer.com/article/10.1007%2Fs10470-012-9936-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10470-012-9936-2" target="_blank" >10.1007/s10470-012-9936-2</a>

Result language
angličtina
Original language name
New Resistorless and Electronically Tunable Realization of Dual-Output VM All-Pass Filter Using VDIBA
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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