摘要
采用了"4I/I原理",基于0.25 um CMOS工艺,设计了一种高增益、恒跨导的输入输出轨至轨运算放大器.并讨论了该运算放大器的性能、原理及设计方法.仿真结果表明,该放大器适于较低工作电压,可作为模拟IP核电路.
Based on 0.25 um CMOS technology,input/output rail-to-rail operational amplifier is designed with constant-gm and high dc-gain."4I / I principle" is adopted in the circuit design,and the performance of operational amplifiers,principles and design methods are discussed.The circuit can be used as analog IP nuclear circuit and suitable for low voltage applications.
出处
《许昌学院学报》
CAS
2011年第2期28-31,共4页
Journal of Xuchang University