AS5011

Data Sheet

www.austriamicrosystems.com

6.3

Magnet-chip surface airgap range

The relation between the magnet physical position and the resulting XY registers depends on the magnet

type/size/shape, and the airgap between the magnet and the top (or bottom) surface of the AS5011.

The measurements on Figure 6, Figure 6 Figure 8 have been processed with the AS5000-MA2H-1 d2x0.8mm

cylinder magnet, available on austriamicrosystems website. For those magnets, used in EasyPoint modules EP40

and EP50, the airgap range is typically 0~3mm.

The following diagrams show the relation between the X register value and the physical X coordinate (±2mm

horizontal displacement, 0mm is the center of the chip package) of the magnet at different airgaps. The resulting X

value range decreases when the airgap increases

The Y axis measurements are the same as the X axis ones.

Airgap 500um

-80

-60

-40

-20

0

20

40

60

80

-2500

-2000

-1500

-1000

-500

0

500

1000

1500

2000

2500

Magnet position (um)

Airgap 1500um

-50

-40

-30

-20

-10

0

10

20

30

40

-2.500 -2.000 -1.500 -1.000

-500

0

500

1.000

1.500

2.000

2.500

Magnet position (um)

Figure 6: X register / X displacement (500um airgap)

Figure 7: X register / X displacement (1500um airgap)

Airgap 2500um

-30

-20

-10

0

10

20

30

-2.500 -2.000 -1.500 -1.000

-500

0

500

1.000

1.500

2.000

2.500

Magnet position (um)

Figure 8: X register / X displacement (2500um airgap)

Revision 3.10

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