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Detail publikace
ROONGMUANPHA, N. FASEEHUDDIN, M. HERENCSÁR, N. TANGSRIRAT, W.
Originální název
Tunable Mixed-Mode Voltage Differencing Buffered Amplifier-Based Universal Filter with Independently High-Q Factor Controllability
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
This paper proposes the design of a mixed-mode universal biquad configuration, which realizes generic filter functions in all four possible modes, namely voltage mode (VM), current mode (CM), transadmittance mode (TAM), and transimpedance mode (TIM). The filter architecture employs two voltage differencing buffered amplifiers (VDBAs), two resistors and two capacitors, and can provide lowpass (LP), bandpass (BP), highpass (HP), bandstop (BS), and allpass (AP) biquadratic filtering responses without any circuit alteration. All passive elements used are grounded, except VM. The circuit not only allows for the electronic tuning of the natural angular frequency (ωo), but also achieves orthogonal tunability of the quality factor (Q). It also provides the feature of availability of output voltage at the low-output impedance terminal in VM and TIM, and does not require inverting-type or double-type input signals to realize all the responses. Moreover, in all modes of operation, the high-Q filter can be easily obtained by adjusting a single resistance value. Influences of the VDBA nonidealities and parasitic elements are also discussed in detail. PSPICE simulations with TSMC 0.18-µm CMOS process parameters and experimental testing results with commercially available IC LT1228s have been used to validate the theoretical predictions.
Klíčová slova
active filter; mixed mode; universal biquadratic filter; voltage differencing buffered amplifier (VDBA)
Autoři
ROONGMUANPHA, N.; FASEEHUDDIN, M.; HERENCSÁR, N.; TANGSRIRAT, W.
Vydáno
15. 10. 2021
Nakladatel
MDPI
ISSN
2076-3417
Periodikum
Applied Sciences - Basel
Ročník
11
Číslo
20
Stát
Švýcarská konfederace
Strany od
1
Strany do
27
Strany počet
URL
https://www.mdpi.com/2076-3417/11/20/9606
Plný text v Digitální knihovně
http://hdl.handle.net/11012/201786
BibTex
@article{BUT172793, author="Natchanai {Roongmuanpha} and Mohammad {Faseehuddin} and Norbert {Herencsár} and Worapong {Tangsrirat}", title="Tunable Mixed-Mode Voltage Differencing Buffered Amplifier-Based Universal Filter with Independently High-Q Factor Controllability", journal="Applied Sciences - Basel", year="2021", volume="11", number="20", pages="1--27", doi="10.3390/app11209606", issn="2076-3417", url="https://www.mdpi.com/2076-3417/11/20/9606" }
Dokumenty
applsci-11-09606.pdf