問題詳情
25 如圖為 MOSFET 差動式放大器，已知電晶體 Q1和 Q2的臨界電壓 VTH、轉導 gm、輸出阻抗 ro等參數均相同，試求差動增益 Ad = vod /vid之值？
(A) gmRD
(B)－gmRD
(C) gmRD /2
(D)－gmRD /2 
參考答案
無參考答案
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