tle4997i Infineon Technologies Corporation, tle4997i Datasheet - Page 17
tle4997i
Manufacturer Part Number
tle4997i
Description
Programmable Linear Hall Sensor For Industrial Use
Manufacturer
Infineon Technologies Corporation
Datasheet
1.TLE4997I.pdf
(34 pages)
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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