Even a quick Google search can turn up hundreds of schematics, if you already read "everything" about filters, what's stopping you from building or simulating one?I read everything about filters...
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 .