Design of Voltage Controlled Gain Instrument Amplifier Based on 0.18μm Process
This paper expounds the design of a voltage controlled gain Instrumentation amplifier based on 0.18μm CMOS process.The Instrumentation amplifier can adjust three gain gears through voltage control.By optimizing the operation amplifier structure inside the Instrumentation amplifier,the Instrumentation amplifier has high performance indicators in 0.18μm CMOS process and can achieve a wide range of gain adjustment.The Aether IC design platform is used to build the bottom circuit and verify the simulation.The simulation shows that the Instrumentation amplifier designed in this paper has the characteristics of high power supply rejection ratio,high input impedance,high Common-mode rejection ratio,low power consumption,low offset,and high stability,which provides a theoretical basis for the design of 0.18μm CMOS voltage controlled gain Instrumentation amplifier.
万方数据
维普
