tle4997i Infineon Technologies Corporation, tle4997i Datasheet - Page 17

• Manufacturer Part Number: tle4997i
• Description: Programmable Linear Hall Sensor For Industrial Use
• Manufacturer: Infineon Technologies Corporation

6.2
The sensitivity is defined by the range and the gain setting. The output of the ADC is
multiplied with the gain value.
Table 8
Parameter
Register size
Gain range
Gain quantization steps ∆
1)
2)
:
6.3
The offset voltage corresponds to an output voltage with zero field at the sensor.
Table 9
Parameter
Register size
Offset range
Offset quantization
steps
1)
The offset value can be calculated by:
Preliminary Data Sheet
The gain value can be calculated by
For gain values between - 0.5 and + 0.5 the numeric accuracy decreases.
To get a flatter output curve it is recommended to select a higher range setting.
A gain value of +1.0 corresponds to typical 40mV/mT sensitivity (100mT range, not guaranteed). It is crucial
to do a final calibration of each IC within the application using the Gain/V
It is crucial to do a final calibration of each IC within the application using the Gain/V
Gain Setting
Offset Setting
Gain
Offset
Symbol Limit Values
G
Gain
Symbol Limit Values
OS
V
∆
Gain
V
OS
OS
V
OS
Gain
min.
- 4.0
min.
-400
=
(
---------------------------------
OS 16384
=
244.14
1.22
4096
–
15
15
(
----------------------------- -
17
max.
3.9998
max.
399
G 16384
–
4096
)
×
V
)
Unit
bit
-
ppm
Unit
bit
%
mV
DD
V
DD
OS
value.
Notes
unsigned integer value
1)2)
corresponds to
Notes
unsigned integer value
1)
@
generally
V
DD
Signal Processing
OS
= 5 V
value.
V
V 1.01, 2006-09
DD
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