【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】CMRR(dB)=20log|Ad/Ac|40=20log[500/Ac]Ac=5........................................................A錯差模Vd=Vi1-Vi2=10uv.....................B錯共模Vc=(Vi1+Vi2)/2=50uv.............C錯Vo=Ad*Vd+Ac*Vc =500*10u+5*50u =5.25mV...............................................D 正確
【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】CMRR(dB)=20log|Ad/Ac|40=20log[500/Ac] --> Ac=5差模Vd=Vi1-Vi2=10uv共模Vc=(Vi1+Vi2)/2=50uvVo=Ad*Vd+Ac*Vc =500*10u+5*50u =5.25mV