ADT7485A データシートの表示（PDF） - Analog Devices
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ADT7485A Datasheet PDF : 16 Pages
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ADT7485A
15
10 D+ TO GND
5
DEV1_EXT1
DEV1_EXT2
DEV2_EXT1
DEV2_EXT2
DEV3_EXT1
DEV3_EXT2
0
–5
–10
–15 D+ TO VCC
–20
DEV1_EXT1
DEV1_EXT2
DEV2_EXT1
DEV2_EXT2
DEV3_EXT1
DEV3_EXT2
–25
–30
–35
–40
0
20
40
60
80
100
RESISTANCE (MΩ)
Figure 9. Remote Temperature Error vs. PCB Resistance
30
25
20
100mV
15
60mV
10
5
40mV
0
–5
10k
100k
1M
10M
100M
1G
NOISE FREQUENCY (°C)
Figure 10. Temperature Error vs. Common-Mode Noise Frequency
0
–10
–20
–30
EXT2
–40
EXT1
–50
–60
–70
–80
–90
0
10
20
30
40
50
CAPACITANCE (nF)
Figure 12. Remote Temperature Error vs. Capacitance Between D1+ and D1−
7
40mV
6
5
4
3
2
20mV
1
10mV
0
10k
100k
1M
10M
100M
1G
NOISE FREQUENCY (°C)
Figure 13. Temperature Error vs. Differential-Mode Noise Frequency
20
15
10
5
125mV
0
50mV
–5
–10
10k
100k
1M
10M
100M
1G
POWER SUPPLY NOISE FREQUENCY (Hz)
Figure 11. Local Temperature Error vs. Power Supply Noise
5
4
3
2
1
125mV
0
50mV
–1
–2
–3
10k
100k
1M
10M
100M
1G
POWER SUPPLY NOISE FREQUENCY (Hz)
Figure 14. Remote Temperature Error vs. Power Supply Noise
Rev. 0 | Page 8 of 16
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