P 6.3-8 Determine the current i_o for the circuit shown in Figure P 6.3-8.

Answer: i_o = 2.5 mA

Figure P 6.3-8

To make explanation easier I have annotated the circuit diagram as follows:

The current we want to find can be written as

We can initially determine since the inputs of the op-amps must be the same, that

And

So we can find by

Now we can do voltage walks and determine that

and

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This page last updated on March 13, 2019