Home » Analog Electronic Circuits » Analog electronics circuits miscellaneous » Question

Analog electronics circuits miscellaneous

Analog Electronic Circuits

  1. For the op-amp shown in fig below open loop differential gain is Aod = 103. The output voltage ν0 for νi = 2 V is:


    1. – 1.996
    2. – 1.998
    3. – 2.004
    4. – 2.006
Correct Option: A

KCL at node A.
I1 = I0

I1 =
Vi – VA
100 kΩ

I0 =
VA – V0
100 kΩ

given, Aod = 103 = –
V0
and Vi = 2 V
VA

or VA =
–V0
103

Now Vi – VA = VA – Vo
or Vi + Vo = 2 VA
or Vi + Vo = 2 ·
–V0
103

or 2 + Vo =
–2V0
103

or Vo +
2V0
= – 2
103

or Vo =
–2 × 103
= – 1.996 V
(103 + 2)

Hence alternative (A) is the correct choice



Your comments will be displayed only after manual approval.