A current-mode analog multiplier/divider based on CCCDTA

A novel simple current-mode analog multiplier/divider, based on current-controlled current-differencing transconductance amplifier (CCCDTA), is presented. The proposed circuit employs only single CCCDTA without any external passive element requirement and it can work as multiplier and divider without changing its topology. In addition, the proposed circuit can work as gain-controllable current amplifier. The circuit performances are depicted through PSPICE simulations. The simulated results show that: for ±1.5V power supply, the total harmonic distortion is about 0.1%, the -3dB bandwidth is more than 26.94 MHz, maximum input range is about 100μA and the output current is low sensitive to temperature variations.