A new FGMOS DXDDCC and a KHN biquad as application example

In this work, a new floating gate MOS (FGMOS) dual-X differential difference current conveyor (DXDDCC) is presented. By using FGMOS transistors both the input stage of the circuit providing the arithmetic calculations gets simpler also the linearity range increases due to the properties of FGMOS differential amplifier. The proposed FGMOS DXDDCC is used in a KHN biquad in order to show the versatility of the DXDDCC block. Both the FGMOS DXDDCC circuit and KHN biquad are simulated with SPICE simulation program by using 0.35μm technology parameters. Simulation results show that the proposed circuit building block can be used to design filters with linearly tunable characteristics.