AD820
100
80
60
40
20
0
100
80
60
40
20
0
100
90
80
70
60
50
40
30
20
10
0
PHASE
GAIN
V
= 0V, +5V
V = ±15V
S
S
R
C
= 2kΩ
= 100pF
L
L
–20
10
–20
10M
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 16. Open-Loop Gain and Phase Margin vs. Frequency
Figure 19. Common-Mode Rejection vs. Frequency
1k
5
4
3
2
1
0
A
= +1
CL
= ±15V
V
S
100
10
NEGATIVE
RAIL
POSITIVE
RAIL
1
+25ºC
+125ºC
+125ºC
0.1
0.01
–55ºC
–55ºC
100
1k
10k
100k
1M
10M
–1
0
1
2
3
FREQUENCY (Hz)
COMMON-MODE VOLTAGE FROM SUPPLY RAILS (V)
Figure 17. Output Impedance vs. Frequency
Figure 20. Absolute Common-Mode Error vs. Common-Mode Voltage
from Supply Rails (VS − VCM
)
16
12
8
1k
100
10
1%
4
V
– V
OH
S
0.1%
0.01%
ERROR
0
V
– V
S
–4
–8
–12
–16
OL
1%
1
0
1
2
3
4
5
0.001
0.01
0.1
1
10
100
SETTLING TIME (µs)
LOAD CURRENT (mA)
Figure 18. Output Swing and Error vs. Settling Time
Figure 21. Output Saturation Voltage vs. Load Current
Rev. E | Page 12 of 24
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