Hi there
.....This chip is a high flyer...anyone successfully used an LF357...it's output circuit is particulary attractive...
What's the best circuit configuration with this ic.. invert/non invert ? .....I thought I had it sussed .....but it was oscillating peacefully into the SW.....any thoughts ? The compensated 356 is way easier to use...but slower...
richj
.....This chip is a high flyer...anyone successfully used an LF357...it's output circuit is particulary attractive...
What's the best circuit configuration with this ic.. invert/non invert ? .....I thought I had it sussed .....but it was oscillating peacefully into the SW.....any thoughts ? The compensated 356 is way easier to use...but slower...
richj
This opamp requires a gain of _minimum_ 10 => not suitable for buffers, tone controls etc.
I used this opamp in the early 80's just because my suppier had run out of LF356. I used this LF357 in an equalizer and I used the frequency compensation according the datasheet but I never got it working properly.
Conclusion: Use LF356 for buffers, tone controls etc.
I used this opamp in the early 80's just because my suppier had run out of LF356. I used this LF357 in an equalizer and I used the frequency compensation according the datasheet but I never got it working properly.
Conclusion: Use LF356 for buffers, tone controls etc.
peranders said:I used this opamp in the early 80's just because my suppier had run out of LF356.
Conclusion: Use LF356 for buffers, tone controls etc.
Umm........thanks for reply.....that makes two of us of the same opin. It strikes me that the DiL 8 package creates the worst of 2 poles....as you said the 356 is pretty tame......
I find the thd pretty sim to TL071 series and suprisingly the noise of the compens 356 is finer grass......I'm using this op amp as a driver in my headphone amp as it can drive better than TL series.
richj
This has nothing to do with the package really, it's the silicone chip. LF357 is an old design and they could do each stage fast enough.richwalters said:It strikes me that the DiL 8 package creates the worst of 2 poles....
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