Based on 0.6 μm Fully Differential Operational Amplifier Design
Guang-Xiao Luo · Hedianzixue yu tance jishu · 2010
Study of a fully differential high-gain,low-power CMOS op-amp,It folded cascode structure,switch-mode common-mode feedback,as well as wide-swing bias circuit.Based on CSMC 0.6 μm CMOS process,using HSPICE circuit simulation software.The various performance parameters of the simulation results show that the circuit in the input voltage of 2.5 V,this circuit is open-loop DC gain of 80 dB,phase margin 80°,the unit-gain bandwidth of 74 MHz,with a high gain,and the power of small 2 mW.