Active-C Current Mode Biquad Filter
Kiran Pal, Garima Jain and Kirat Pal
A novel universal current mode (CM) biquad filter is presented in this paper using the active devices, one operational amplifier (OA), two multiple output operational transconductance amplifier (OTAs) and one grounded capacitor. This biquad circuit can realize the multiple current transfer functions as low pass, high pass and band pass. The circuit parameter can be tuned orthogonally through adjusting the transconductance gain of OTAs. In addition this biquad enjoys very low sensitivities and is suitable for IC implementation because of grounded capacitor.
Keywords: Current mode filters, Active Filters, Resistorless Filters, Analog Filters.