MPU 3300 Specs

By bbesler , 25 May 2016

Hello,

I am interested in getting the MPU 3300 gyro, but I have a few questions about the specs before I buy. First, the bias stability given in the datasheet is 15deg/h, but when you look at the Allan Variance curves provided, the bias stability (taken from the part of the curve with slope = 0) seems to be ~1.5mdps or ~5.4deg/h (taken from the z-axis gyro curve). Is my understanding of the bias stability incorrect or what is happening here? Secondly, I was wondering what the Angular Random Walk (ARW) is as it is not given in the datasheet. Again from the Allan Variance curves provided, I found the ARW to be ~5mdeg/sqrt(s) or 0.3deg/sqrt(h) by getting the value at t=1s, does this value seem reasonably accurate?

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