AD8221
70
60
100
80
GAIN = 1000
50
60
GAIN = 100
GAIN = 10
GAIN = 1
40
40
30
20
20
0
10
–20
–40
–60
–80
–100
0
–10
–20
–30
100
1k
10k
100k
1M
10M
–40
–20
0
20
40
60
80
100
120
140
FREQUENCY (Hz)
TEMPERATURE (°C)
Figure 15. Gain vs. Frequency
Figure 18. CMR vs. Temperature
160
+V
–0
S
GAIN = 1000
GAIN = 100
GAIN = 10
–0.4
–0.8
–1.2
–1.6
–2.0
–2.4
140
120
100
80
GAIN = 1
+2.4
+2.0
+1.6
+1.2
+0.8
+0.4
+0
60
40
0.1
–V
S
1
10
100
1k
10k
100k
1M
0
5
10
15
20
FREQUENCY (Hz)
SUPPLY VOLTAGE (±V)
Figure 16. CMRR vs. Frequency, RTI
Figure 19. Input Voltage Limit vs. Supply Voltage, G = 1
160
140
120
100
80
+V
S
–0
GAIN = 1000
–0.4
–0.8
–1.2
–1.6
–2.0
GAIN = 100
GAIN = 10
GAIN = 1
R
R
= 10kΩ
= 2kΩ
L
L
+2.0
+1.6
+1.2
+0.8
+0.4
+0
R
R
= 2kΩ
L
L
60
= 10kΩ
40
0.1
–V
S
1
10
100
1k
10k
100k
1M
0
5
10
SUPPLY VOLTAGE (±V)
15
20
FREQUENCY (Hz)
Figure 17. CMRR vs. Frequency, RTI, 1 kΩ Source Imbalance
Figure 20. Output Voltage Swing vs. Supply Voltage, G = 1
Rev. B | Page 11 of 24
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