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Engineering and Tech / Introduction to Electric Circuits 9 / Chapter 6.7 / Problem P6.7-1

Introduction to Electric Circuits | 9th Edition | ISBN: 9781118477502 | Authors: James A. Svoboda, Richard C. Dorf

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Solved: Consider the inverting amplifier shown in Figure P 6.7-3. Use the finite gain

Chapter 6, Problem P6.7-1

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QUESTION:

Consider the inverting amplifier shown in Figure P 6.7-1. The operational amplifier is a typical OP-07E (Table 6.7-1). Use the offsets model of the operational amplifier to calculate the output offset voltage. (Recall that the input \(v_{in}\) is set to zero when calculating the output offset voltage.)

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QUESTION:

Consider the inverting amplifier shown in Figure P 6.7-1. The operational amplifier is a typical OP-07E (Table 6.7-1). Use the offsets model of the operational amplifier to calculate the output offset voltage. (Recall that the input \(v_{in}\) is set to zero when calculating the output offset voltage.)

ANSWER:

Step 1 of 6

Offset model of operational amplifier is given above. The circuit is solved by using a principle of superposition.

1) When is input, is shorted, and bias currents are open circuits. Then we have an ideal op-amp configured as an inverting amplifier:

2) When is input, is shorted and bias currents are open circuits. Output voltage in that case corresponds to non-inverting amplifier output:

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