DRV425 Datasheet, PDF (8/37 Pages) Texas Instruments – DRV425 Fluxgate Magnetic-Field Sensor

DRV425
SBOS729 – OCTOBER 2015
Typical Characteristics (continued)
at VDD = 5 V and T_A = 25°C (unless otherwise noted)
12.35
12.3
12.25
12.2
12.15
12.1
12.05
3
3.5
4
4.5
5
Supply Voltage (V)
5.5
D008
Figure 7. Fluxgate Sensor Front-End Gain vs
Supply Voltage
50
40
30
20
10
0
D057
Linearity (%)
VDD = 5 V
Figure 9. Fluxgate Sensor Front-End Linearity Histogram
0.2
0.175
0.15
Device 1
Device 2
Device 3
0.125
0.1
0.075
0.05
0.025
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D011
Figure 11. Fluxgate Sensor Front-End Linearity vs
Temperature
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12.35
12.3
12.25
Device 1
Device 2
Device 3
12.2
12.15
12.1
12.05
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D009
Figure 8. Fluxgate Sensor Front-End Gain vs Temperature
0.2
0.175
0.15
0.125
0.1
0.075
0.05
0.025
0
3
3.5
4
4.5
5
Supply Voltage (V)
5.5
D010
Figure 10. Fluxgate Sensor Front-End Linearity vs
Supply Voltage
100
10
1
0.1
0.0001 0.001
0.01
0.1
1
Noise Frequency (kHz)
10
100
D006
Figure 12. Fluxgate Sensor Front-End Noise Density vs
Noise Frequency
8
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