A Novel Design of Low Voltage,Wilson Current Mirror based Wideband Operational Transconductance Amplifier

An optimum OTA topology is done in order to optimize MOS transistor sizing.Also, the design of folded cascode OTA, which works for frequencies that lead to a base band circuit design for RF application, is based on transistor sizing methodology. Simulation results are performed using SPICE software and BSIM3V3 model for CMOS 0.18μm process, show that the designed folded cascode OTA has a 52dB DC gain and provides a gain bandwidth product of around 400MHz. Keywords—CMOS IC design, optimization, folded cascode OTA, gm/ID methodology, base band RF application.