AD8228 查看數據表（PDF） - Analog Devices
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AD8228 Datasheet PDF : 24 Pages
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2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
0.01
0.1
1
10
WARM-UP TIME (Minutes)
Figure 15. Change in Input Offset Voltage vs. Warm-Up Time
4
3
2
+IN IBIAS
1
0
–1
–IN IBIAS
IOS
–2
–3
–4
–40 –20 0
20 40 60 80
TEMPERATURE (°C)
100 120 140
Figure 16. Input Bias Current and Offset Current vs. Temperature
160
140
G = 100
120
G = 10
100
80
60
40
20
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
Figure 17. Positive PSRR vs. Frequency, RTI
AD8228
160
140
120
100
80
60
40
20
0.1
G = 100
G = 10
1
10
100
1k
10k 100k 1M
FREQUENCY (Hz)
Figure 18. Negative PSRR vs. Frequency
70
60
50
40
30
20
10
0
–10
–20
–30
100
G = 100
G = 10
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 19. Gain vs. Frequency
150
100
G = 10
50
0
G = 100
–50
–100
–150
–45 –30 –15 0
15 30 45 60 75 90 105 120 135
TEMPERATURE (°C)
Figure 20. Gain Error vs. Temperature
Rev. 0 | Page 11 of 24
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