Enhanced cascode node impedance to the improved recyclic folded cascode OTA

This paper presents improved recyclic folded cascode OTA (IRFC) with enhanced cascode node impedance. It is the improved version of the conventional improved recyclic folded cascode OTA with enhanced gain parameter. The concept of positive feedback is used to increase the impedance of cascode node in existing IRFC technique. Proposed technique has a higher gain with small change in bandwidth and same power consumption. The proposed scheme is simulated at 180nm technology node with all the transistors operating in saturation region. It is found that there is increment in gain from 52dB to 61dB without changing unity gain bandwidth (UGB).