Fastest Way to Calculate the Gain

[GarretF]

Suppose you have an OpAmp in the inverting configuration, like the one below.

Now the question is, what is the fastest and easiest way of getting the gain. (No mental math or calculators allowed here - you have to get Multisim to tell you the gain.)

I think the fastest way is using a reference probe. Probes in Multisim can reference other problems, and when they do, the default is to show the gain. To get the gain:

1. Click Simulate > Instruments > Measurement Probe
2. Place the probe on the wire between the voltage source and the resistor.
3. Click Simulate > Instruments > Preset Measurement Probes > Voltage with reference to probe
4. Select Probe1 as the reference
5. Place the probe on the output. Notice that the visible measurements includes gain.

Start a simulation, and you have the probe will report the gain relative to Probe1.

[Zarni1996]

Hi, I can't find Measurement Prode in my Multisim software that i had recently installed. How can I find or what do i have to do to get measurement prode?

Thank you.

[Tien_P]

Hi Zarni,

Have a look at this tutorial if you are using Multisim 14:

http://www.ni.com/tutorial/52656/en/

This tutorial shows the icon for the older versions:

http://www.ni.com/tutorial/3764/en/