TLE4997 datasheet(18/36 Pages) INFINEON

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TLE4997I

Signal Processing

Data Sheet

V 1.0, 2007-06

• 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 Setting

Range

Range in mT

Parameter R

Low

± 50

Mid

± 100

High

± 200

Table 7

Range

Parameter

Symbol Limit Values

Unit

Notes

min.

max.

bit

1) Ranges do not have a guaranteed absolute accuracy. The temperature pre-calibration is performed in the mid

range (100 mT).

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