[理工] [電子]101台大ICS
↑ ↑ ↑ ↑
∣ ∣ ∣ ∣
∣/ ∣ ∣ \∣
Vin﹢—∣ ∣ ∣ ∣—Vin-
∣↘ ∣ ∣ ↙∣
∣ ∣/ \∣ ∣
●—∣ ∣—●
∣ ∣↘ ↙∣ ∣
∣ ∣ ∣ ∣
∣ ∣ 1KΩ 1KΩ ∣ ∣
●—————^^^^————╮╭————^^^^—————●
∣ ∣ __╳__ ∣ ∣
∣ ∣ / \ ∣ ∣
∣ ●—— ∣ ∣ ——● ∣
╭─╮ ∣ ∣ ∣↙ ↘∣ ∣ ∣ ╭─╮
1mA│↓∣ ∣ ●—∣ ∣—● ∣1mA│↓│
╰—╯ ╭─╮ ∣\ /∣ ╭─╮ ╰─╯
∣1mA│↓│ ∣ ∣ 1mA│↓│ ∣
≡ ╰─╯ ∣ ∣ ╰─╯ ≡
∣ Io↓∣ ∣ Iout ∣
≡ ∣ ∣ → ≡
∣__ ●————●Vout
∣ ∣ ∣ ∣
∣ ∣ ∣ ∣
\∣__∣╱ =1pF(有點忘記多少)
∣ ∣ ∣
↙∣ ∣↘ ∣
∣ ∣ ≡
∣ ∣
≡ ≡
題目是說:這是一個對稱的電路,下方Q7、Q8是電流鏡,ro=10KΩ,且全部偏壓在
順向主動區。
(a) Vin=0,偏壓電流Io=?
(b) gain Vout/Vin=?
(c) 忘了
條件就只給這些,主要想問一下(a)小題,麻煩高手了!!!
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