Hey there!

I have some questions regarding gyroscopes and how their performance is described in the datasheet.

First off, there are gyros which output an analos signal. E.g. with an scale factor of “**k = 0.012 x Vdd/3 V/°/s**” (ratiometric) for a +/-75°/s operation. I am not sure how to interpret that when for instance I want to know how much °/s will be displayed for a measured voltage.

As far as I understand it, it means that I multiply the output voltage by the given scale factor. With Vdd = 3.3V and an output voltage of 0.5V: **k = 0.012 x 3.3/3 = 0,0132**. So my measured °/s would be **0.0132 * 0.5V = 0,0066°/s**.

Second, there are gyros with a digital interface. E.g. their scale factor (for a rate of +/-75°/s )is given as k = 96 LSB/°/s. Same here: How would I interpret it? My understanding is, that I have 96 steps for each degree per second, so my finest measurement resolution (not disregarding noise, etc.) would be +/-1/96 °/s or about +/-0.01 °/s.

Greetings

V.