Authors :
Adnan Abdullah Qasem; G. N. Shinde
Volume/Issue :
2nd ICTSA-2022
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://bit.ly/42M80tf
DOI :
https://doi.org/10.5281/zenodo.7783834
Abstract :
This article illustrates a new configuration to
realize the stability of third order active-R filter. If the
resistive voltage-dividers have high input impedance and
low output impedance, the circuit realizes concurrently
three transfer functions low-pass, band-pass, and highpass concurrently in single circuit with work at different
nodes with gratified results. It observed that, the low-pass
filter works for all values of quality factor and is
extremely stable only when the quality factor is less or
equal to one. Whereas, the band-pass filter works and is
asymptotically stable for all values of quality factor. The
high pass filter works for all values of quality factor and
is asymptotically stable only when the quality factor is
less or equal to one. The circuit has also low sensitivity to
passive and active elements. From the results, it can be
seen that when the quality factor is less or equal to one,
the circuit has excellent low-pass performance and highpass performance and for all values of quality factor, the
circuit has excellent band-pass performance.
Keywords :
Filter; Stability response; Third order; Active-R; Quality factor; OTA, Op-amp.
This article illustrates a new configuration to
realize the stability of third order active-R filter. If the
resistive voltage-dividers have high input impedance and
low output impedance, the circuit realizes concurrently
three transfer functions low-pass, band-pass, and highpass concurrently in single circuit with work at different
nodes with gratified results. It observed that, the low-pass
filter works for all values of quality factor and is
extremely stable only when the quality factor is less or
equal to one. Whereas, the band-pass filter works and is
asymptotically stable for all values of quality factor. The
high pass filter works for all values of quality factor and
is asymptotically stable only when the quality factor is
less or equal to one. The circuit has also low sensitivity to
passive and active elements. From the results, it can be
seen that when the quality factor is less or equal to one,
the circuit has excellent low-pass performance and highpass performance and for all values of quality factor, the
circuit has excellent band-pass performance.
Keywords :
Filter; Stability response; Third order; Active-R; Quality factor; OTA, Op-amp.