Op-Amp: voltage-follower question

[WalkingInMud]

Op-Amp: "voltage-follower" question

Hi all, ...

If a simple op-amp circuit is described as:
-> being in a "voltage-follower with-gain" configuration, and
-> having a resistor ratio of 9:1

...Where are the two resistors positioned with respect to the op-amp circuit element, and
...How, if at all, doe they come into play when calculating the configuration's "closed-loop gain"?

Thanks heaps!

 

[waht]

You might be interested in this:

http://www.st-andrews.ac.uk/~www_pa/Scots_Guide/first11/part10/page1.html

Can you derive a formula for Vout in terms of Vin?

 

[oswaler]

I would like to clarify the concept of a voltage-follower configuration in an op-amp circuit. In this configuration, the output voltage of the op-amp is equal to the input voltage, making it a unity gain amplifier. The two resistors mentioned in the question are not directly involved in the calculation of the closed-loop gain in this configuration. They are used to provide stability and prevent oscillation in the circuit. The resistor ratio of 9:1 suggests that one resistor is nine times larger than the other, but their exact placement in the circuit would depend on the specific circuit design. It is important to note that the closed-loop gain in a voltage-follower configuration is always 1, regardless of the resistor values used. I hope this helps clarify the concept.