It is also possible to cancel the offset drift of the reference voltage when working over the defined temperature range by
using the same method.
The use of the Closed Loop Fluxgate technology allowed achieving significantly better performances for the following
parameters:
• Initial offset at +25°C
• Offset drift
• Gain drift
as expressed per the following charts (Fig. 7: Comparison between CAS and LTS ; CASR and LTSR models).
CAS 6-NP LTS 6-NP CAS 15-NP LTS 15-NP CAS 25-NP LTS 25-NP
Nominal current, IPN
A
A
6
15
25
Measuring range
2ꢀ
< ꢀ.3
2ꢀꢀ
2.4
19.2
ꢀ.4
2ꢀꢀ
1ꢀ
51
< ꢀ.3
2ꢀꢀ
1.ꢀ
48
ꢀ.4
2ꢀꢀ
4.2
85
< ꢀ.3
2ꢀꢀ
ꢀ.6
8ꢀ
ꢀ.4
2ꢀꢀ
2.5
Response time
us
Bandwidth ( 1 dB)
kHz
mVpp
Output voltage noise, 1ꢀꢀ Hz..1ꢀ kHz (typ.)
Output
Voltage
1ꢀ4.2
Voltage
41.7
Voltage
25.ꢀ
Sensitivity
mV/A
% of IPN
% of IPN
% of IPN
% of IPN
% of IPN
% of IPN
mV
Sensitivity error (max)
Offset drift (25°C .. 85°C) (max)
Sensitivity drift (25°C .. 85°C) (max)
Linearity (max)
ꢀ.7
1.92
ꢀ.24
ꢀ.1
ꢀ.6
4.8
ꢀ.7
1.68
ꢀ.24
ꢀ.1
ꢀ.6
2.9
ꢀ.7
1.44
ꢀ.24
ꢀ.1
ꢀ.6
2.4
ꢀ.3
ꢀ.3
ꢀ.3
ꢀ.1
ꢀ.1
ꢀ.1
Accuracy at +25 °C (max)
Accuracy at +85 °C (max)
Offset (max)
0.80
3.0
0.70
5.80
25
0.80
2.7
0.70
3.58
25
0.80
2.5
6.3
0.70
3.40
25
1ꢀ.4
7.1
Operating temperature range
°C
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
CASR6-NP LTSR6-NP CASR15-NP LTSR15-NP CASR25-NP LTSR25-NP
Nominal current, IPN
A
A
6
15
25
Measuring range
2ꢀ
< ꢀ.3
2ꢀꢀ
1.7
19.2
ꢀ.4
2ꢀꢀ
1ꢀ
51
< ꢀ.3
2ꢀꢀ
ꢀ.7
48
ꢀ.4
2ꢀꢀ
4.2
85
< ꢀ.3
2ꢀꢀ
ꢀ.4
8ꢀ
ꢀ.4
2ꢀꢀ
2.5
Response time
us
Bandwidth ( 1 dB)
kHz
mVpp
Output voltage noise, 1ꢀꢀ Hz..1ꢀ kHz (typ.)
Output
Voltage
1ꢀ4.2
Voltage
41.7
Voltage
25.ꢀ
Sensitivity
mV/A
% of IPN
% of IPN
% of IPN
% of IPN
% of IPN
% of IPN
mV
Sensitivity error (max)
Offset drift (25°C .. 85°C) (max)
Sensitivity drift (25°C .. 85°C) (max)
Linearity (max)
ꢀ.7
ꢀ.72
ꢀ.24
ꢀ.1
ꢀ.6
3.6
ꢀ.7
ꢀ.48
ꢀ.24
ꢀ.1
ꢀ.6
1.5
ꢀ.7
ꢀ.24
ꢀ.24
ꢀ.1
ꢀ.6
ꢀ.9
ꢀ.3
ꢀ.3
ꢀ.3
ꢀ.1
ꢀ.1
ꢀ.1
Accuracy at +25 °C (max)
Accuracy at +85 °C (max)
Offset max
0.8
1.8
5.3
0.70
4.60
25
0.8
1.5
2.2
0.70
2.54
25
0.8
1.3
1.4
0.70
1.90
25
Operating temperature range
°C
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
-4ꢀ .. 85
Fig. 7. Comparison between CAS and LTS ; CASR and LTSR models – Electrical performances
ꢀ
LEM [ LEM ]
