mlx90333 Melexis Company, mlx90333 Datasheet - Page 9

• Manufacturer Part Number: mlx90333
• Description: Triaxis? 3d-joystick Position Sensor
• Manufacturer: Melexis Company

Three (3) differential voltages corresponding to the three (3) components of the applied flux density are
provided to the ADC (Analog-to-Digital Converter – Figure 8 and Figure 9). The Hall signals are
processed through a fully differential analog chain featuring the classic offset cancellation technique (Hall
plate quadrature spinning and chopper-stabilized amplifier).
The amplitude of V
gain of the IMC only affects the components parallel to the IC surface.
3901090333
Rev. 001
Figure 6 – Magnetic Flux Density – β = 0 Deg – B
Figure 7 – Magnetic Flux Density – α = 0 Deg – B
-100
-200
-300
-400
-100
-200
-300
-400
400
300
200
100
400
300
200
100
0
0
-90
-90
Z
is smaller than the other two (2) components V
B
B
X
X
-45
-45
Tria⊗is™ 3D-Joystick Position Sensor
Page 9 of 43
Alpha α (Deg)
Beta β (Deg)
0
0
B
B
Y
Y
X
X
∝ sin(α), B
= 0, B
X
Y
and V
∝ sin(β) & B
45
45
Y
Y
= 0 & B
due to fact that the magnetic
MLX90333
B
B
Z
Z
Z
Z
∝ cos(α)
∝ cos(β)
90
90
Data Sheet
Jan 08