Johnson777717
New Member
Good day folks!
I'm doing a little reading on Op Amps, and slew rates, and I have a question about how to calculate if a slew rate is quick enough to keep from attenuation, given a certain gain.
What is the mathematical relationship between slew rate, gain and the point of attenuation?
I'm reading this particular point in an article, which may help to describe what I'm looking for:
"One side effect of high gains is that sometimes the Op-Amp is not fast enough to keep up with the voltage swings. Slew rate defines how "fast" an Op-Amp is. A common 741 Op Amp is pretty slow with a 1/2 volt per micro second slew rate. This is fine for voltage followers, but if you push a 10X gain through a 741, you'll find that it can alter the tonal quality of the signal, usually attenuating the high frequencies." -- in effect from Shavano Music Online 3/2000 Jens Moller.
Thanks for any assistance that you can provide.
I'm doing a little reading on Op Amps, and slew rates, and I have a question about how to calculate if a slew rate is quick enough to keep from attenuation, given a certain gain.
What is the mathematical relationship between slew rate, gain and the point of attenuation?
I'm reading this particular point in an article, which may help to describe what I'm looking for:
"One side effect of high gains is that sometimes the Op-Amp is not fast enough to keep up with the voltage swings. Slew rate defines how "fast" an Op-Amp is. A common 741 Op Amp is pretty slow with a 1/2 volt per micro second slew rate. This is fine for voltage followers, but if you push a 10X gain through a 741, you'll find that it can alter the tonal quality of the signal, usually attenuating the high frequencies." -- in effect from Shavano Music Online 3/2000 Jens Moller.
Thanks for any assistance that you can provide.