On 10/25/2013 9:50 PM, Ellis Burman wrote:
> True, a mic pre-amp is a much more demanding application for an op-amp than
> a line-level buffer. Still, I'd be more concerned with the slew rate
> limits of the 5532. In my mind, the whole idea of DSD is to capture
> transient information (at least that's what I hear with DSD or higher
> sample rates, or direct-to-disc recording for that matter.) I haven't done
> the math though - maybe 9V/uS is fast enough, even at 5.6 MHz sample rate.
It is according to Jung's conservative criterion, as long as signal
level is <= 9V peak. In practice, the fast transients, with material
>20kHz, which might possibly induce slew problwms, are usually smaller
than full-scale, so they won't exceed the criterion.