LIS3DH: 12 Bit Resolution and FIFO Mode

[Aaron Derbyshire]

Posted on November 30, 2017 at 11:19

Given that the LIS3DH FIFO is only 10 bit wide, is it actually possible to run the accelerometer with 12 bit resolution?

#12-bit #lis3dh #fifo

[Miroslav BATEK]

Posted on November 30, 2017 at 16:09

If FIFO is disabled and the sensor is configured into High-resolution mode the output is 12-bit.

[Aaron Derbyshire]

Posted on November 30, 2017 at 16:21

As I anticipated, thank you.

Does this mean that similarly if I have the sensor configured into a FIFO mode with 8 bit resolution I will still achieve 8 bit resolution?

[Miroslav BATEK · Accepted solution]

Posted on December 01, 2017 at 17:40

I think if the sensor is configured int Low-power mode (8-bit resolution) also only 8-bit value is stored in the FIFO (the low bytes are 0).

[Aaron Derbyshire]

Posted on December 01, 2017 at 17:51

Thanks, I thought this may be the case but just wanted to double check as it's not specified in the datasheet or in AN3308.

Thanks again!