Design and Simulation of Wideband CMOS CFOA

Abstract

Nowadays Research in analog integrated circuits has recently gone in the direction of low-voltage (LV) low-power (LP) design. In the current-mode architectures‚ the current-conveyor (CCII) can be considered the basic circuit block because all the active devices can be made of a suitable connection of one or two CCIIs. CCII is particularly attractive in portable systems‚ where LV LP constraints have to be taken into account. So in the COMS CFOA the basic blocks are CCII and unity buffer, which is responsible for the gain and the bandwidth of circuit. Here we will discuss the proposed circuit of the CMOS CFOS which will be simulated in the 0.25μm technology. The simulation result will be shown for the Ac and Dc analysis.