3.2.2. Op-Amp Open-Loop Gain

Try these first

1. 1.

   What does the term open-loop gain refer to?

   Hint

   Think about how much the output changes with small input changes.

2. 2.

   Why is a high open-loop gain desired?

   Hint

   Consider applications where signal clarity is key.

3. 3.

   What is the formula for open-loop gain in an op-amp?

   Hint

   Remember to think about what each variable represents.

4. 4.

   True or False: The open-loop gain decreases when feedback is applied.

   • True
   • False

   Hint

   Consider how feedback affects sound systems.

5. 5.

   If an op-amp has an open-loop gain of 200,000 and we want the output voltage to be 10V, what voltage difference is required at the inputs?

   Hint

   Use the formula to isolate the voltage difference.

6. 6.

   Describe how an increase in the open-loop gain would affect the stability of an op-amp circuit.

   Hint

   Think about how a tighter grip can affect balance in a see-saw.