Electronic Devices - Operational Amplifiers - Discussion

Discussion Forum : Operational Amplifiers - General Questions (Q.No. 30)
30.
At what input voltage level does the output voltage level become numerically equal to the value of the differential gain of the amplifier?
Vi1 = –Vi2 = 0.25 V
V i1 = –V i2 = 0.50 V
V i1 = –V i2 = 0.75 V
V i1 = –Vi2 = 1.00 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Sharon said:   9 years ago
In order to get A = Vo,

We need Vin1 = Vin2.

Ranjith said:   1 decade ago
Vout = A(vin1-vin2).

Now from the question, vout = A.

Therefore, vin1 - vin2 = 1.

i.e, vin1 = 0.5, vin2 = -0.5.

vin1 = -vin2 = 0.5.

Vishnu said:   1 decade ago
What happened with this formula, how to assign numerical value ?

Taruna said:   1 decade ago
As we know.

Vout = A(Vin1 - Vin2).

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