Datasheet

AD8222
Rev. A | Page 10 of 24
70
–40
–30
–20
–10
0
10
20
30
40
50
60
100 1k 10k 100k 1M 10M
GAIN (dB)
FREQUENCY (Hz)
GAIN = 1
GAIN = 10
GAIN = 100
GAIN = 1000
05947-015
Figure 15. Gain vs. Frequency
160
150
140
130
120
110
100
90
80
70
60
50
40
0.1 1M100k10k1k100101
FREQUENCY (Hz)
05947-016
CMRR (dB)
GAIN = 1
GAIN = 10
GAIN = 100
GAIN = 1000
BANDWIDTH
LIMITED
Figure 16. CMRR vs. Frequency, RTI
160
150
140
130
120
110
100
90
80
70
60
50
40
0.1 1M100k10k1k100101
FREQUENCY (Hz)
05947-017
CMRR (dB)
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
BANDWIDTH
LIMITED
Figure 17. CMRR vs. Frequency, RTI, 1 kΩ Source Imbalance
20
15
10
5
0
–5
–10
–15
–20
–40 120100806040200–20
TEMPERATURE (°C)
05947-018
ΔCMR (µV/V)
EXAMPLE PART 1
EXAMPLE PART 2
Figure 18. ΔCMR vs. Temperature, G = 1
–V
S
+0
+0.4
+0.8
+1.2
+1.6
+2.0
FROM +V
S
2 6 10 14 18
INPUT VOLTAGE LIMIT (V)
REFERRED TO SUPPLY VOLTAGES
SUPPLY VOLTAGE (V)
–2.0
–1.6
–1.2
–0.8
–0.4
+
V
S
–
0
FROM –V
S
05947-019
Figure 19. Input Voltage Limit vs. Supply Voltage, G = 1
OUTPUT VOLTAGE SWING (V)
REFERRED TO SUPPLY VOLTAGES
R
L
= 2kΩ
R
L
= 10kΩ
–1.6
–1.2
–0.4
+
V
S
–
0
–0.8
R
L
= 10kΩ
R
L
= 2kΩ
+0.4
–V
S
+0
+0.8
+1.2
+1.6
2 6 10 14 18
SUPPLY VOLTAGE (V)
05947-020
Figure 20. Output Voltage Swing vs. Supply Voltage, G = 1