Datasheet

AD8220 Data Sheet
Rev. C | Page 12 of 28
10n
1n
100p
10p
1p
0.1p
–50 150
03579-059
TEMPERATURE (°C)
INPUT BIAS CURRENT (A)
–25 0 25 50 75 100 125
I
OS
I
BIAS
Figure 17. Input Bias Current and Offset Current vs. Temperature,
V
S
= ±15 V, V
REF
= 0 V
10n
1n
100p
10p
1p
0.1p
–50 150
03579-065
TEMPERATURE (°C)
CURRENT (A)
–25 0 25 50 75 100 125
I
OS
I
BIAS
Figure 18. Input Bias Current and Offset Current vs. Temperature,
V
S
= +5 V, V
REF
= 2.5 V
160
40
10 100k
03579-023
FREQUENCY (Hz)
CMRR (dB)
100 1k 10k
140
120
100
80
60
GAIN = 1
GAIN = 10
GAIN = 100
GAIN = 1000
BANDWIDTH
LIMITED
Figure 19. CMRR vs. Frequency
160
40
1 100k
03579-051
FREQUENCY (Hz)
CMRR (dB)
140
120
100
80
60
GAIN = 1
GAIN = 10
GAIN = 1000
BANDWIDTH
LIMITED
GAIN = 100
10 100 1k 10k
Figure 20. CMRR vs. Frequency, 1 kΩ Source Imbalance
10
–10
–50 130
03579-034
TEMPERATURE (°C)
Δ CMRR (μV/V)
8
6
4
2
0
–2
–4
–6
–8
–30 –10 10 30 50 70 90 110
Figure 21. Change in CMRR vs. Temperature, G = 1
70
–40
100 10M
03579-022
FREQUENCY (Hz)
GAIN (dB)
1k 10k 100k 1M
60
50
40
30
20
10
0
–10
–20
–30
GAIN = 1
GAIN = 10
GAIN = 100
GAIN = 1000
Figure 22. Gain vs. Frequency
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