Abstract
In this paper a design and simulation study of low power resistor less active filter using 22-nm carbon nanotubes field effect transistor (CNTFET) based second generation current conveyor(CC-II) is presented. The comparative analysis of CNTFET based current conveyor (CNTFET-CC) and complementary metal oxide semiconductor based current conveyor (CMOS-CC) has been done. It have been found that current and voltage bandwidth is hiked by 102, port Y impedance is increased by 84 times for CNTFET-CC, power consumption is 5 times lesser and total harmonic distortion is very less achieved. The variation of port resistances of CNTFETCC have been investigated by varying number of carbon nanotubes(CNTs), CNT diameter and inter CNT pitch. Further, a comparative analysis of current mode active filters using CNTFET-CC and CMOS-CC have been presented. The proposed CNTFET-CC filter structure consumes 5 times lesser power. Filter circuit realizes low-pass, high-pass and band-pass filter response using two current conveyors (CC) and two capacitors.
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