#### SharpSlayer

##### Newbie

I am aware that this value is available in the datasheet along with a well plotted graph, but my task here is to recreate the graph on the oscilloscope. So far I have read the basics of slew rate and learnt how to calculate it if I get a graph. But I am not sure if I am in the right path and if this will be possible.

My knowledge and idea on Op-amp slew rate and how to measure it come from this article here: https://components101.com/article/u...in-op-amp-and-how-to-measure-and-calculate-it

Here is what I have done so far,

1. As discussed in article, I have created a voltage follower circuit using AD8602ARMZ op-amp.

2. I have verified that the op-amp circuit is working my measuring the input and output voltage

4. Used an Arduino to generate PWM signals for the input signal of voltage follower

5. Mounted one channel of my scope to input and other channel to the output of my voltage follower circuit

With that I am stuck. The input wave from arduino and output wave from op-amp both look identical I am not able to measure any change in time or change in voltage.

I have tried changing the freqency of input pulse but it did not help. would appreciate if anyone can suggest a way forward.

PS: I am not allowed to take pictures inside my campus, so unable to click and share any