op amp help with vout

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Discussion in 'Homework Help' started by kirillavitch, Oct 5, 2011.

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Oct 5, 2011 #1

kirillavitch Thread Starter New Member

Oct 5, 2011

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I am totally lost about this problem. The circuit layout is the same as the pic just that the3uA is replaced with 27uA and I need to calculate Vout ..
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Oct 5, 2011 #2

kirillavitch Thread Starter New Member

Oct 5, 2011

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The top most resistor is 33 kΩ

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Oct 5, 2011 #3

Georacer Moderator

Nov 25, 2009

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Are you familiar with the superposition theorem? It reduces the analysis to three simple OpAmps circuits.

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Oct 5, 2011 #4

t_n_k AAC Fanatic!

Mar 6, 2009

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There are a couple of initial assumptions you might also need to make.

If the op-amp is considered to be ideal. Then ....

The input currents to the op-amp input terminals are zero.

The amplifier output resistance is zero.

These points will then assist with the analysis.
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