DocID024204 Rev 4

13/33

LIS3MDL

Terminology and functionality

3

Terminology and functionality

3.1

Sensitivity

Sensitivity describes the gain of the sensor and can be determined, for example, by

applying a magnetic field of 1 gauss to it.

3.2

Zero-gauss level

Zero-gauss level offset describes the deviation of an actual output signal from the ideal

output if no magnetic field is present.

3.3

Factory calibration

The IC interface is factory calibrated for sensitivity (So) and Zero-gauss level (TyOff).

The trimming values are stored in the device in non-volatile memory. Each time the device is

turned on, the trimming parameters are downloaded to the registers to be employed during

active operation which allows using the device without further calibration.