I'm wondering, for any "general-purpose" opamp, if I configure it as a non-inverting unity-gain buffer and run it in the following conditions:
circuit: unity gain buffer
signal input: 200 mVpp sinewave
frequency: unity gain GBW frequency
then, with an oscilloscope I would measure the rise time (10-90%) and do the following calculation:
ΔV = (0.2 - .04) = 0.16V (rise time voltage change, subtracting out the initial 10% and final 10%)
RT = measured rise time value from scope (uS)
slew rate = ΔV / RT (volts/uS)
I just want to get in the right ballpark. Does this make sense?
I would have provided a schematic but I didn't see a tool to draw one on AAC.
Thanks all!!
circuit: unity gain buffer
signal input: 200 mVpp sinewave
frequency: unity gain GBW frequency
then, with an oscilloscope I would measure the rise time (10-90%) and do the following calculation:
ΔV = (0.2 - .04) = 0.16V (rise time voltage change, subtracting out the initial 10% and final 10%)
RT = measured rise time value from scope (uS)
slew rate = ΔV / RT (volts/uS)
I just want to get in the right ballpark. Does this make sense?
I would have provided a schematic but I didn't see a tool to draw one on AAC.
Thanks all!!