Google tells me that OPA695 is a high bandwidth current-feedback opamp. Is that suitable for what you need to do? What did Google tell you?mariussica said:is opa 695 an amplifier.
Very unlikely. I have been looking at electronics for nearly 50 years and I haven't yet read everything about filters.I read everything about filters
Headphones don't send audio, they receive audio. We still don't know what you are trying to achieve. If you can't give a clear description of purpose there is no chance whatsoever of anyone (including you) designing a filter to do the job.mariussica said:I want to send audio with headphones .