MLX91204

360 Degrees Hi-Speed Rotary Position Sensor

(Sine/Cosine)

3901091204

Page 6 of 11

Data Sheet

Rev 003

16/Jan/12

From the previous table and the ageing data, the intrinsic angular linearity error (in Degree)

can be derived from the individual contributions as it follows:

Test Conditions

Parameters

Output Swing

Unit

± 1 V

± 2 V

Room Temperature

Offset

± 0.8

± 0.4

Degree

Sensitivity Mismatch

± 0.84

± 0.84

Degree

Phase Mismatch

± 1

± 1

Degree

Total

± 2.64

± 2.24

Degree

Temperature Range

Offset

± 0.8

± 0.4

Degree

Sensitivity Mismatch

± 0.34

± 0.34

Degree

Phase Mismatch

± 0.12

± 0.12

Degree

Total

± 1.26

± 0.86

Degree

Lifetime/Ageing

(HTOL 1000 hours – 5.0 V –

150 Deg.C.)

Offset

± 0.8

± 0.4

Degree

Sensitivity Mismatch

± 0.1

± 0.1

Degree

Phase Mismatch

± 0.1

± 0.1

Degree

Total

± 1.00

± 0.60

Degree

Overall Linearity Error

Excl. Ageing

± 3.90

± 3.10

Degree

Incl. Ageing

± 4.90

± 3.70

Degree

The intrinsic linearity error refers only to the linearity error associated to the MLX91204. The

linearity error associated to the magnetic and mechanical (off-axis, excentricity) design is not

included and should be considered as an additional contribution.

For more information, please refer to the application note:

http://www.melexis.com/Assets/Magnet_Application_Note_MLX90316_5221.aspx

The total error can be reduced either statically (room temperature compensation) or

dynamically (continuous compensation) through the off-chip signal processing performing the

the arctangent function: offset, gain and phase correction can be applied.

For more information, please refer to the application note:

http://www.melexis.com/Assets/Front-End_Calibration_of_MLX90316_5252.aspx