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LIS2HH12 Noise Information

Question asked by Niclaes.Christophe on Aug 16, 2016
Latest reply on Aug 15, 2017 by Miroslav B
Hi,

I've a design based on LIS344ALH where the noise level is a very sensitive parameter since I need to measure signals in the mg range. I would like to move to a full digital component and I'm looking to the LIS2HH12. Unfortunetely, the datasheet doesn't contain any information about noise.

Can I get this information?

Another question: almost all accelerometer's datasheets talk about the mechanical noise only in µg/sqrt(Hz), but without giving a full noise figure taking into account the acquisition chain.

For analog accelerometers, could I consider that I can map the value for mechanical noise to an electrical noise value using the sensitivity?

For digital accelerometers, could Iconsider that I can map the value for mechanical noise to an digital noise (in LSB) value using the sensitivity?

Thanks!

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