We propose in this study basic analog complementary metal oxide semiconductor (CMOS) circuits based on the pheromone source location of the silkmoth. The analog circuit is achieved by the circuit for the threshold processing using the operational amplifier. Because the proposed circuit is constructed with the smell sensor, five metal oxide semiconductor (MOS) transistors and four resistors, the basic circuit is simple structure. The test circuit was fabricated on the breadboard by discrete MOS transistors and resistors. The output voltage of the test circuit was approximately equal to the output signal of the model based on the pheromone source location of the silkmoth. It was clarified from the measured results that the proposed circuit can control the motor. In the future, the new compact target tracking sensor can be achieved by applying the proposed circuits in this study and the previous circuit based on the biological vision and auditory systems.

analog circuit, pheromone source location, smell detection.