Abstract: This paper shows the different steps to realize and simulate the MIN/MAX fuzzy operators using operational transconductance amplifier, operational amplifier and 2 stage CMOS operational amplifier using SPICE. This paper also shows the calculation of different parameters like slew rate, power dissi, CMRR and gain for all the fuzzy operators. Later comparison of all parameters was discussed. The results with OTA comes out to be the best as it uses less voltage, more slew rate for high speed operations.

Keywords: Operational transconductance amplifier, CMOS operational amplifier, MIN, MAX.