0 g Voltage @ Vs=3.3V

Hi there, thanks for your question. I've reviewed some characterization data that was done at Vs=3V and it looks like the 0g bias for that level is 1.5g with a standard deviation of 0.2g. Unfortunately, I don't have any data for Vs = 3.3V, but it should not differ very much from the values given.

Regards,

Nico

Hello Nico,

thank you for your reply.
Unfortunately, it does not satisfy my expectation. Even if you do not have the characterization at 3.3V, at least the designers should know where the 0g bias level will be, at least form a theoretical point of view. That is what I am asking.
"It should not differ very much from the values given" is too generic for my scopes.
Thank you for your understanding,
GF

Hello Guillermito , nimejia thanks for posting.

As stated in page 15 of the product DS ADXL103/ADXL203 (Rev. F), the output is ratiometric to Vs, so the 0g bias is Vs/2 = 1.65 V, as expected. This is true for most of our analog output inertial sensors. That said, as my colleague pointed out, this generic has been on the market for close to 2 decades, so the available collateral may be limited; however, we will do our best to support any inquiry.
 


hope this helps,

Mario SM

Ok, thank you very much, that fully answers my question.
It was my fault I skipped the aforementioned paragraph of the datasheet; I' will pay more attention next time.
Best rgds,
G