AD820
100
80
100
80
60
40
20
0
100
90
80
70
60
50
40
30
20
10
0
PHASE
60
40
20
0
V
V
= 0V, 5V
AND
= 0V, 3V
V
= ؎15V
S
GAIN
S
S
R
C
= 2k⍀
= 100pF
L
L
–20
–20
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
FREQUENCY – Hz
FREQUENCY – Hz
Figure 15. Open-Loop Gain and Phase Margin vs.
Frequency
Figure 18. Common-Mode Rejection vs. Frequency
5
4
1k
A
= +1
= ؎15V
CL
V
S
100
10
POSITIVE
RAIL
NEGATIVE
RAIL
3
2
1
0
+25؇C
1
+125؇C
+125؇C
0.1
0.01
–55؇C
–55؇C
100
1k
10k
100k
1M
10M
–1
0
1
2
3
FREQUENCY – Hz
COMMON-MODE VOLTAGE FROM SUPPLY RAILS – Volts
Figure 16. Output Impedance vs. Frequency
Figure 19. Absolute Common-Mode Error vs. Common-
Mode Voltage from Supply Rails (VS – VCM
)
16
12
1000
100
10
1%
8
4
V
– V
OH
S
0
–4
0.1%
0.01%
ERROR
V
– V
OL
S
–8
1%
1.0
–12
–16
0.0
0
2.0
3.0
4.0
5.0
0.001
0.01
0.1
1
10
100
LOAD CURRENT – mA
SETTLING TIME – s
Figure 17. Output Swing and Error vs. Settling Time
Figure 20. Output Saturation Voltage vs Load Current
-
REV. B
–9–
ADI [ ADI ]
