The technology is scaling down at a significant rate; the major challenge is to design differential amplifier in nanoscale technology with best performance parameters. MOSFET technology is scaling down to meet the performance, cost, and power requirements of the upcoming high throughput applications. Scaling of conventional MOSFET may be difficult further, the technology node due to uncontrollable short- channel effects and excessive threshold voltage variation. Therefore, novel transistor structures have been investigated to sustain continued scaling. CNFET and FinFET have a lot of potential...