A FG-MOS Based Fully Differential Current Controlled Conveyor and Its Applications

作者：Fani Rezvan^*; Farshidi Ebrahim

来源：Circuits, Systems, and Signal Processing, 2013, 32(3): 993-1011.

DOI：10.1007/s00034-012-9513-z

• Current-mode
• Current conveyor
• Floating gate MOS
• Fully differential
• LC-ladder
• Active filter

This paper presents a new fully differential second generation current controlled conveyor (FDCCCII) based on differential pair topology, which employs floating gate MOS transistors (FG-MOS). It uses floating gate MOSFETs at the input stage and has rail-to-rail structure which performs with both positive and negative signals. This circuit has tunable parasitic resistance at its input port. It operates with low supply voltage (+/- 0.8 V), low power consumption (lower than 3 mW at current bias of 1 mA), and wide range parasitic resistance (R-X). This circuit has less MOSFET than the previous similar circuits and is suitable for integrated circuit design. To demonstrate the application of the proposed circuit, a fully differential current mode LC-ladder filter and a fully differential multifunction biquad filter are designed. Simulation results by HSPICE confirm validity of the proposed circuit and its application.

• 出版日期2013-6