題目:
The FET-input OP amp A gives an output of 0.5V when connected as shown
(R1=0.1k, R2=33k)
(1)What is the input offset voltage,Vos?
(2)If R1 is changed to 50K ,R2 is replaced by a 1nF capacitor,
find Vo as a function of t (Vo(0)=0, Vo(sat)=±13V)
圖:http://ppt.cc/2goL
答案:
(1) 1.5mv
(2) Vo(t)=30.2t 當t>0.43s時,Vo飽和
我有問題是第二題
不知道怎麼列方程式 感覺卡卡的... (I=C dVc/dt)
請教一下各位
THX~
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