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SCA103T View Datasheet(PDF) - VTI technologies

Part Name
Description
Manufacturer
SCA103T Datasheet PDF : 19 Pages
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SCA103T Series
temperature dependency of SCA103T offset (differential output)
0.3
specification limit
0.2
0.1
average
0
+3 Sigma
-3 Sigma
-0.1
-0.2
-0.3
specification limit
-40
-20
0
20
40
60
80
100
120
Tem p [°C]
Figure 4.
Typical temperature dependency of SCA103T offset
Tem perature dependency of SCA103T sensitivity [%] (differential output)
1.5
1
0.5
s pec if ic ation
limit
0
average
-0.5
+3 Sigma
-1
-3 Sigma
-1.5
-2
-2.5
s pec if ic ation
limit
-3
-40
-20
0
20
40
60
80
100
120
Tem p [°C]
Figure 5.
Typical temperature dependency of SCA103T sensitivity
1.8.1 Additional External Compensation
To achieve the best possible accuracy, the temperature measurement information and typical
temperature dependency curve can be used for SCA103T sensitivity temperature dependency
compensation. The offset temperature dependency curves do not have any significant tendency so
there is no need for any additional external compensation for offset.
By using an additional 3rd order polynome compensation curve based on average sensitivity
temperature dependency curve and temperature measurement information, it is possible to reduce
sensitivity temperature dependency from 0.013%/°C down to 0.005%/°C.
The equation for the fitted 3rd order polynome curve is:
Scorr = −0.0000005*T 3 0.00005*T 2 + 0.0032 *T 0.031
Where:
Scorr:
T
3rd order polynome fitted to average sensitivity temperature dependency curve
temperature in °C (Refer to paragraph 2.7- Temperature Measurement)
VTI Technologies Oy
www.vti.fi
Subject to changes
Doc.Nr. 8261700
7/19
Rev.A

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