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ADT7481ARMZ-1R7 Dual Channel Temperature Sensor and Overtemperature Alarm
Prototype PCB
Part No.:   ADT7481ARMZ-1R7
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Description:   Dual Channel Temperature Sensor and Overtemperature Alarm
File Size :   253 K    
Page : 20 Pages
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Maker   ONSEMI [ ON SEMICONDUCTOR ]http://www.onsemi.com
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  ADT7481ARMZ-1R7 Datasheet PDF page 1 ADT7481ARMZ-1R7 Datasheet PDF page 2 ADT7481ARMZ-1R7 Datasheet PDF page 3 ADT7481ARMZ-1R7 Datasheet PDF page 4 ADT7481ARMZ-1R7 Datasheet PDF page 6 ADT7481ARMZ-1R7 Datasheet PDF page 7 ADT7481ARMZ-1R7 Datasheet PDF page 8 ADT7481ARMZ-1R7 Datasheet PDF page 9  
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ADT7481
TYPICAL CHARACTERISTICS
3.5
3.0
2.5
TEMPERATURE ERROR
2.0
1.5
1.0
0.5
0
0.5
–1.0
–50
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
MEAN
HIGH 4S
LOW 4S
3.5
3.0
2.5
TEMPERATURE ERROR
2.0
1.5
1.0
0.5
0
0.5
0
50
TEMPERATURE (5C)
100
150
–1.0
–50
0
50
TEMPERATURE (5C)
100
150
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
HIGH 4S
LOW 4S
Figure 3. Local Temperature Error vs. Temperature
Figure 4. Remote 1 Temperature Error vs.
Temperature
10
5
TEMPERATURE ERROR (5C)
D+ TO GND
3.5
3.0
2.5
TEMPERATURE ERROR
2.0
1.5
1.0
0.5
0
0.5
–1.0
–50
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
MEAN
HIGH 4S
LOW 4S
D+ TO V
CC
–10
–15
–20
–25
0
50
TEMPERATURE (5C)
100
150
1
10
LEAKAGE RESISTANCE (MΩ)
100
Figure 5. Remote 2 Temperature Error vs.
Temperature
Figure 6. Temperature Error vs. D+/D− Leakage
Resistance
0
–2
TEMPERATURE ERROR (5C)
–4
–6
I
DD
(μA)
1000
900
800
700
600
500
400
300
200
100
0
5
10
15
20
25
0
0.01
0.1
1
CONVERTION RATE (Hz)
10
100
DEV 4BC
DEV 2BC
–12
ć14
ć16
DEV 3
DEV 2
DEV 4
DEV 3BC
–18
CAPACITANCE (nF)
Figure 7. Temperature Error vs. D+/D− Capacitance
Figure 8. Operating Supply Current vs.
Conversion Rate
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