Current-input current-output universal biquad employing two bulk-driven VDTAs

摘要

Universal 2nd-order current-input current-output filter containing two active elements, namely VDTAs (Voltage-Differencing Transconductance Amplifiers), and two grounded capacitors is described. The circuit topology starts from the well-known two-integrator flow graph of the classical KHN (Kerwin-Huelsman-Newcomb) biquad.