Electronic Devices - Op-Amp Applications - Discussion

Discussion Forum : Op-Amp Applications - General Questions (Q.No. 21)
21.
Calculate the output voltage.

3.02 V
2.03 V
1.78 V
1.50 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

KSG said:   10 years ago
Vo1 = (560/4.3+1)*80.

Vo2 = -(560/33)*Vo1.

Vo3 = -(560/33)*Vo2 = 3.02.
(1)

Ahmet said:   1 decade ago
Vo1=560/4.3*80=1.0V.

Vo2=560/33*Vo1=1.7V.

Vo3=Vo=560/33*Vo2=3.02V.

Mane said:   1 decade ago
Isn't Vo1 = (560/4.3 + 1)80?

Somanna said:   7 years ago
Vo = (1+Rf/R1)(-Rf/R2)(-Rf/R3).
= (1+560/4.3)(-560/33)(-560/33),
= 3.02V.

Makhotso nthole said:   6 years ago
How 80 came? Explain it clearly.

Sheldon said:   6 years ago
Vo =(Vi) (1+Rf/R1)(-Rf/R2)(-Rf/R3).
= (80x10^-6)(1+560/4.3)(-560/33)(-560/33),
= 3.02V.

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