ADT7490ARQZ 查看數據表（PDF） - ON Semiconductor
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ADT7490ARQZ Datasheet PDF : 75 Pages
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ADT7490
TYPICAL CHARACTERISTICS
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–40 –20 0
25 40 60 70
TEMPERATURE (5C)
DEV 1
DEV 2
DEV 3
DEV 4
DEV 5
DEV 6
DEV 7
DEV 8
DEV 9
DEV 10
DEV 11
DEV 12
DEV 13
DEV 14
DEV 15
DEV 16
DEV 17
DEV 18
DEV 19
DEV 20
DEV 21
DEV 22
DEV 23
DEV 24
DEV 25
DEV 26
DEV 27
DEV 28
DEV 29
DEV 30
DEV 31
DEV 32
MEAN
LOW SPEC
HIGH SPEC
85 100 125
Figure 5. Local Temperature Sensor Error
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–40 –20 0
25 40 60 70
TEMPERATURE (5C)
DEV 1
DEV 2
DEV 3
DEV 4
DEV 5
DEV 6
DEV 7
DEV 8
DEV 9
DEV 10
DEV 11
DEV 12
DEV 13
DEV 14
DEV 15
DEV 16
DEV 17
DEV 18
DEV 19
DEV 20
DEV 21
DEV 22
DEV 23
DEV 24
DEV 25
DEV 26
DEV 27
DEV 28
DEV 29
DEV 30
DEV 31
DEV 32
MEAN
LOW SPEC
HIGH SPEC
85 100 125
Figure 6. Remote 1 Temperature Sensor Error
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–40 –20 0
25 40 60 70
TEMPERATURE (5C)
DEV 1
DEV 2
DEV 3
DEV 4
DEV 5
DEV 6
DEV 7
DEV 8
DEV 9
DEV 10
DEV 11
DEV 12
DEV 13
DEV 14
DEV 15
DEV 16
DEV 17
DEV 18
DEV 19
DEV 20
DEV 21
DEV 22
DEV 23
DEV 24
DEV 25
DEV 26
DEV 27
DEV 28
DEV 29
DEV 30
DEV 31
DEV 32
MEAN
LOW SPEC
HIGH SPEC
85 100 125
Figure 7. Remote 2 Temperature Sensor Error
140
EXTERNAL 2
120
100
LOCAL
80
EXTERNAL 1
60
40
20
0
0
10
20
30
40
50
60
TIME (s)
Figure 8. ADT7490 Response to Thermal Shock
8
6
DEV 1
4
2
0
DEV 3
–2
–4
DEV 2
–6
–8
0 200 400 600 800 1000 1200 1400 1600
SERIES RESISTANCE (Ω)
Figure 9. Temperature Error vs. Series Resistance
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
0
100mV
250mV
100
200
300
400
500
600
POWER SUPPLY NOISE FREQUENCY (MHz)
Figure 10. Local Temperature Error vs. Power
Supply Noise Frequency
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