[理工] [電子]-差動多級放大
http://www.wretch.cc/album/show.php?i=Fredkid&b=25&f=1254292770&p=0
題目在這 應該也是用短路轉導法算吧
我算出來的ro1=500K ro3=1000K Gm=gm1=0.2mA/V
但是Gm(ro1//ro3)=66.6
跟答案不一樣 還有共模時的增益要怎麼算QQ
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