This is pretty close, but I would probably assume a single-pole roll-off, which means that the noise bandwidth would be 1.6 x cut-off frequency (15Hz).

That sounds like a good way for you to optimize the trade-off between Total noise vs Responsiveness. Thanks for sharing this! Good luck with your project.

I was considering a multiple-sensor system to correlate the signal and cancel random noise, but could as well use it at full ODR and average and downsample to increase the SNR.

Thank you for posting this question.

This is pretty close, but I would probably assume a single-pole roll-off, which means that the noise bandwidth would be 1.6 x cut-off frequency (15Hz).

Noise = 0.025 x sqrt(1.6 x 15) = ~122ug

I hope that this helps!