Revista de Sistemas Elétricos e Eletrônicos

Design and Implementation of High Gain, High Unity Gain Bandwidth, High Slew Rate and Low Power Dissipation CMOS Folded Cascode OTA for Wide Band Applications

Abstract

Vadodaria MU, Patel R and Popat J

A novel differential input pair and single output OTA is designed in this paper. This FCOTA is designed by using current mirror and its enhanced gain parameter and also is reduce the power dissipation and increase the gain bandwidth. Simulation results are performed using Mentor Graphics software model for CMOS TSMC 180 nm process technology. The supply voltage is given 1.8 v. The designed FCOTA has different capacitive load and according its Gain, Unity Gain Bandwidth, Power Dissipation, Phase Margin and Slew Rate are measured. Gain, Unity Gain Bandwidth and Slew Rate are optimizing up to 97.37 db, 20.83 GHz and 3.5075 KV/μs respectively. The power dissipation reduces up to 8.31 μW. This FCOTA is designed for wide band application because of high gain and high bandwidth and low power dissipation.