TLE4997 Datasheet, PDF (18/36 Pages) Infineon Technologies AG – Programmable Linear Hall Sensor for Industrial Use

TLE4997I
Signal Processing
• In the quadratic path, the difference temperature is squared and multiplied with the
TC₂ value.
• Both path outputs are added together and multiplied with the gain value from the
EEPROM.
6.1
Magnetic Field Ranges
The working range of the magnetic field defines the input range of the A/D Converter. It
is always symmetric to the zero field point. Any two points in the magnetic range can be
selected to be the end points of the output curve. The output voltage represents the
range between the two points.
In the case of fields higher than the range values, the output signal may be distorted.
The range must be set before the calibration of offset and gain.
Table 6
Range
Low
Mid
High
Range Setting
Range in mT
± 50
± 100
± 200
Parameter R
3
1
0
Table 7
Range
Parameter
Symbol Limit Values Unit Notes
Register size
min. max.
R
2
bit
1)
1) _{Ranges do not have a guaranteed absolute accuracy. The temperature pre-calibration is performed in the mid}
range (100 mT).
Data Sheet
18
V 1.0, 2007-06