Nik, Generally speaking we'd like to see between 45 and 90 degrees of phase margin at 0dB gain to suggest circuit stability. In my simulation this design has a bit of a peak in the phase plot at 0dB with 99.25 degrees of phase margin - so it is sort of marginal. Running a small signal step response simulation you'll see a little bit of ringing which agrees with this marginal stability. I would suggest you place those components at least in your layout so you have the hooks to tweak the circuit should you find your results undesirable.
↧