L3G4IS

Terminology

Doc ID 022612 Rev 1

7/24

2

Terminology

2.1

Sensitivity

An angular rate gyroscope is a device that produces a positive-going digital output for

counter-clockwise rotation around the sensitive axis considered. Sensitivity describes the

gain of the sensor and can be determined by applying a defined angular velocity to it. This

value changes very little over temperature and time.

2.2

Zero-rate level

Zero-rate level describes the actual output signal if there is no angular rate present. The

zero-rate level of precise MEMS sensors is, to some extent, a result of stress to the sensor

and therefore the zero-rate level can slightly change after mounting the sensor onto a

printed circuit board or after exposing it to extensive mechanical stress. This value changes

very little over temperature and time.