NSE-5310_07 Datasheet, PDF (11/22 Pages) ams AG – Miniature Position Encoder with Zero Reference and IC Output

NSE-5310
Datasheet - Application Information
8 Application Information
Figure 7. TRACKER NSE-5310 Evaluation Board
Figure 7 shows NSE-5310 mounted on a PCB with FPC connector for ease of handling. A multipole linear magnetic strip is positioned above the
sensor.
8.1 Hall Sensor Array
Eight Hall Sensor Front End cells are connected to two current summation busses which end into two Active Load circuits. The Hall elements are
arranged in an even linear array. The array is divided into four quadrants. For normal operation (position encoding), two opposite quadrants are
summed up differentially to neglect magnetic offsets. The 90 degree angular shift of the quadrant pairs produces 90 degree phase shifted SIN
and COS signals for a harmonic input signal provided by a diametrically magnetized source.
Table 9. Hall Sensor Array Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
G_Array
d_Array
Array Gain
Array Length
Double output stage
5.226
2
mm
Figure 8. Hall Sensor FE Arrangement
A mag
N
S
2mm
Front End Double
Output Stages
Q0
H0
H1
Q1
H2
H3
Q2
H4
H5
Q3
H6
H7
CH0 SIN
CH1 COS
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