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ADIS16497 Recommended for New Designs
The ADIS16497 is a complete inertial system that includes a triaxis gyroscope and a triaxis accelerometer. Each inertial sensor in the ADIS16497 combines...
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Noise density calculation

Sharat

on May 30, 2024

Category: Software

Product Number: ADIS16497

https://www.analog.com/en/lp/001/accelerometer-specifications-definitions.html

In this above Link RMS noise is calculated from Accelerometer noise density why 1.6 factor is multiplied to BW bandwidth

Achim
on May 30, 2024 5:13 AM
0
Hello Sharat,

the factor 1.6 takes into account, that the noise contributions do not stop exactly at the cutoff frequency. Typically, the noise decreases steadily above the cutoff frequency, but still makes a certain contribution to the RMS noise. If the frequency behavior corresponds to a single pole filter, then the noise contributions above the cutoff frequency result in an “equivalent noise bandwidth” of 1.57*BW, if the frequency behavior corresponds to a 2-pole filter, then the equivalent noise bandwidth is 1.2*BW.

https://www.analog.com/media/en/training-seminars/tutorials/MT-048.pdf

best regards

Achim
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Noise density calculation