2.1集成电路运算放大器(ICOp-Amp) ◆集成运放的内部组成单元 P Differential Voltage 9 Power Amplifier Amplifiers Input stage Gain stage vo2 Amplifiers output stage N Av2 Av3=1 A typical op-amp is made up three type ampilier circuits *Differential Amplifier-一差分式放大器 *Voltage Amplifiers-一电压放大器 *Power Amplifiers-一功率放大器 Vo=AvI(VP -VN),Vo2=Av2 Vo=Av4Av2(VP -VN) Vo=Av3 P02=Av14v2Av3(Vp-VN)=Avo(VP-EN) 2.1 集成电路运算放大器(IC Op-Amp) ◆集成运放的内部组成单元 + - + - + - Differential Amplifier Input stage AV1 Voltage Amplifiers Gain stage AV2 Power Amplifiers output stage AV3 =1 + - + - vP vN vO1 vO2 vO P N V+ V - A typical op-amp is made up three type ampilier circuits *Differential Amplifier—差分式放大器 *Voltage Amplifiers—电压放大器 *Power Amplifiers—功率放大器 vo1 = Av1 (vP－vN ) , vo2 = Av2 vo1 = Av1 Av2 (vP－vN ) vo = Av3 vo2 = Av1 Av2 Av3 (vP－vN )= Avo (vP－vN )