I did an experiment with an op-amp for measuring slew rate of a 741. After a certain frequency, with the help of an oscilloscope, I measured a slew rate which was approximately 25 V/ms. After that I was expecting that as I increase the frequency, the slew rate will also change, but it didn't changes at all. I varied my frequency up to 100 kHz, and I found the same 25 V/ms. Why is this happening?
Before I did the experiment, I was also wondering what frequency I should use to measure my slew rate. Through my experiment, I found it to be constant over frequency, but I still don't understand why this is happening. Is it due to the maximum rate of change of voltage?