An Analog Multi-shaped and Fully Programmable Twin-cell MFG Structure in 65nm CMOS Technology

Abstract

In this paper, a novel method to implement an analog fully programmable membership function generator (MFG) architecture with twin-cell MFG is presented which operates in Transconductance-mode, easily. The proposed multi-shaped MFG circuit is capable of producing the Triangular, Trapezoidal, S and Z-shaped. Also, a fully programmability status in all parameters like Width, Height and Position is available. To make this purpose, by changing of the applied input constant voltages and bias current can reach to programming, independently. Therefore, the proposed MFG architecture is suitable for a general purposes fuzzy logic controller (FLC). In this proposed MFG approach only 26 transistors are used, so the chip area and total power consumption can be reduced to 552um2 and 83.8uW, respectively which are decreased in comparison with the other researches. The proposed MFG circuit is simulated in 65nm standard CMOS technology with a single supply voltage of 1.2V. Post-layout simulation results show that the proposed circuit is in the great agreement which indicates high precision of the proposed design.