AD822
100
100
90
80
COMMON-MODE REJECTION – dB
80
PHASE
OPEN-LOOP GAIN – dB
80
PHASE MARGIN IN DEGREES
70
60
50
40
30
20
10
V
S
=
15V
60
GAIN
40
60
40
V
S
= 0V, 3V
V
S
= 0V, 5V
20
R
L
= 2k
C
L
= 100pF
20
0
0
–20
10
100
1k
10k
100k
FREQUENCY – Hz
1M
–20
10M
0
10
100
1k
10k
100k
FREQUENCY – Hz
1M
10M
TPC 13. Open-Loop Gain and Phase Margin vs.
Frequency
1k
TPC 16. Common-Mode Rejection vs. Frequency
5
COMMON-MODE ERROR VOLTAGE – mV
A
CL
= +1
V
S
= 15V
100
4
NEGATIVE
RAIL
POSITIVE
RAIL
OUTPUT IMPEDANCE –
10
3
+25 C
2
+125 C
–55 C
+125 C
0
–1
0
1
2
COMMON-MODE VOLTAGE FROM SUPPLY RAILS – V
3
1
0.1
1
–55 C
0.01
100
1k
10k
100k
FREQUENCY – Hz
1M
10M
TPC 14. Output Impedance vs. Frequency
TPC 17. Absolute Common-Mode Error vs. Common-
Mode Voltage from Supply Rails (V
S
– V
CM
)
1000
16
12
8
4
0.01%
0
–4
–8
–12
–16
0.0
1%
0.1%
0.01%
ERROR
1%
OUTPUT SATURATION VOLTAGE – mV
VOLTS
OUTPUT SWING FROM 0 TO
100
V
S
– V
OH
10
V
OL
– V
S
1.0
2.0
3.0
SETTLING TIME – s
4.0
5.0
0
0.001
0.01
0.1
1
LOAD CURRENT – mA
10
100
TPC 15. Output Swing and Error vs. Settling Time
TPC 18. Output Saturation Voltage vs. Load Current
REV. D
–9–
ETC [ ETC ]
