ADT7484A/ADT7486A
TYPICAL PERFORMANCE CHARACTERISTICS (Cont’d)
15
10 D+ TO GND
5
0
−5
−10
−15 D+ TO VCC
−20
−25
−30
−35
−40
0
20
DEV1_EXT1
DEV1_EXT2
DEV2_EXT1
DEV2_EXT2
DEV3_EXT1
DEV3_EXT2
DEV1_EXT1
DEV1_EXT2
DEV2_EXT1
DEV2_EXT2
DEV3_EXT1
DEV3_EXT2
40
60
80
RESISTANCE (MW)
100
Figure 8. Remote Temperature Error vs. PCB
Resistance
20
15
10
5
125 mV
0
50 mV
−5
−10
10k
100k
1M
10M 100M 1G
POWER SUPPLY NOISE FREQUENCY (Hz)
Figure 10. Local Temperature Error vs. Power
Supply Noise
7
40 mV
6
5
4
3
20 mV
2
1
10 mV
0
10k
100k
1M
10M 100M 1G
NOISE FREQUENCY (Hz)
Figure 12. Temperature Error vs. Differential-Mode
Noise Frequency
30
100 mV
25
20
15
60 mV
10
5
40 mV
0
−5
10k
100k
1M
10M 100M 1G
NOISE FREQUENCY (Hz)
Figure 9. Temperature Error vs. Common-Mode
Noise Frequency
0
−10
−20
−30
EXT2
−40
−50
EXT1
−60
−70
−80
−90
0
10
20
30
40
50
CAPACITANCE (nF)
Figure 11. Remote Temperature Error
vs. Capacitance Between D1+ and D1−
5
4
3
2
1
125 mV
0
50 mV
−1
−2
−3
10k
100k
1M
10M 100M 1G
POWER SUPPLY NOISE FREQUENCY (Hz)
Figure 13. Remote Temperature Error vs. Power
Supply Noise
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