So I've joined my schools Formula SAE racing team. Pretty neat. They've stuck me on the task of building an impact data logger for their car's impact attenuator. The impact should not exceed 18G max. Taking into account the length of what is in essence a crumple zone, I've calculated the main impact to take place over the course of 1 ms. Or to put it another way 1 KHz. Here's the datasheet for the accelerometer they gave me. https://www.nxp.com/docs/en/data-sheet/MMA3201KEG.pdf On page 3 under output signal you can see "Bandwidth Response" is 400 Hz typical. Also of note I'm following their schematic on page 5, which includes an RC filter. (But that filter has a 15KHz cut off) I don't fully understand what bandwidth response means, in this sense. Lastly, since 0 G is 2.5 V and +20 G is 5V can I assume that the scale is 0.125V/G?