L3GD20TR datasheet(14/44 Pages) STMICROELECTRONICS

14 / 44 page

Mechanical and electrical specifications

L3GD20

14/44

Doc ID 022116 Rev 1

2.6

Terminology

2.6.1

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.

2.6.2

Zero-rate level

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

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

therefore 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.

2.7

Soldering information

The LGA package is compliant with the ECOPACK®, RoHS and “Green” standard.

It is qualified for soldering heat resistance according to JEDEC J-STD-020.

Leave “Pin 1 Indicator” unconnected during soldering.

Land pattern and soldering recommendations are available at

L3GD20TR Arkusz danych(PDF) 14 Page - STMicroelectronics