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Voltage Differencing Gain Amplifier-Based Shadow Filter: A Comparison Study
Date Issued
July 1, 2020
Type
Conference Paper
Abstract
This study determines the voltage-mode shadow filter realization based on voltage differencing gain amplifier (VDGA) in comparison with a classical second-order filter. The realized shadow filter uses three VDGAs and only two grounded capacitors, and can simultaneously realize second-order lowpass and bandpass filter responses. The natural angular frequency (ωA) and the quality factor (QA) can be tuned by means of the VDGAs' transconductance gains. The performance comparison between the realized shadow filter and the classical second-order filter is demonstrated through simulation results with 0.25μm CMOS technology.
Citation
Proceedings 2020 6th International Conference on Engineering Applied Sciences and Technology Iceast 2020, 2020