Voltage and Current Mode KHN Filter: A Current Feedback Amplifier Approach
Indu Prabha Singh, Meeti Dehran, Kalyan Singh · 2013
In this paper, voltage -mode and a current-mode Kerwin-Huelsman-Newcomb (KHN) filter structure employing current feedback amplifiers (CFAs) is proposed. Both circuits perform three standard functions including low-pass, high-pass and band-pass functions. The current mode filter is multi-input and single-output (MISO) type whereas voltage mode filter is single-input and multi-output (SIMO) type. The proposed filter is capable of providing an independent control of the natural angular frequency (ωo) and quality factor (Q).