2015-07-17 06:05 AM
Hello,
I am planning to operate the LIS3DH accelerometer in low power mode (resulting in an output data rate of 5kHz according to Table 26 in the datasheet).
In Table 3 in the datasheet a sensitivity of 12mg/digit is given, but I think this is referring to the high resolution mode (similar to the specification given for the LIS2DH12 accelerometer).
Which sensitivity will I achieve in the low power mode with the LIS3DH (measurement range set to +-16g)? Thanks! #mems-accelerometer2015-11-17 07:28 AM
I believe low power mode is 8 bit where normal mode is 12 bit.
2017-08-15 01:29 AM
In table 26 of the datasheet (LIS3DH_Datasheet_DocID_17530rev1.pdf) I also see an omission. The last row in the tabel is showing: Normal (1.25 kHz) / low power mode (5 KHz). This seems odd, since a higher frequency would consume more energy.
2017-08-15 04:49 AM
LIS3DH has three modes with different resolution:
Low-power mode - 8 bit
Normal mode - 10 bit
High resolution mode - 12 bit.
ODR 5376Hz is available only in Low-power mode.
It is also true that higher ODR means higher current consumption.