[問題] 關於Hspice在模擬差動放大器時候的問題
我的code輸入端是
vina vina 0 dc 1.5v ac 1
vinb vinb 0 dc 1.5v ac 1 90
分析時候打(voa和vob是輸出端)
.probe ac VDB(voa,vob)
我想問一下,這樣打法有錯嗎??
我在跑圖的時候一直都是0db
可是我用.tf指令去看
增益友到100db耶!!!
謝謝!!
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