
AD622
Data Sheet
Rev. E | Page 6 of 16
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, VS = ±15 V, RL = 2 k, unless otherwise noted.
50
40
30
20
10
0
–1.2
–0.8
–0.4
0
0.4
0.8
1.2
P
E
RCE
NT
AG
E
O
F
UNI
T
S
OUTPUT OFFSET VOLTAGE (mV)
SAMPLE SIZE = 191
00777-
002
Figure 2. Typical Distribution of Output Offset Voltage
50
40
30
20
10
0
60
80
100
120
140
P
E
RCE
NT
AG
E
O
F
UNI
T
S
COMMON-MODE REJECTION RATIO (dB)
SAMPLE SIZE = 383
00777-
003
Figure 3. Typical Distribution of Common-Mode Rejection
2.0
1.5
1.0
0.5
0
5
4
3
2
1
IN
P
U
T
OFFS
E
T
V
OLTA
GE
(
V
)
WARM-UP TIME (Minutes)
00777-
004
Figure 4. Change in Input Offset Voltage vs. Warm-Up Time
1000
100
10
1
100k
10k
1k
100
10
V
OLTA
GE
N
OIS
E
(
nV
/
H
z
)
FREQUENCY (Hz)
GAIN = 1
GAIN = 1000
BW LIMIT
GAIN = 10
GAIN = 100, 1000
00777-
005
Figure 5. Voltage Noise Spectral Density vs. Frequency (G = 1 to 1000)
1000
100
10
1
1000
100
10
CURRE
NT
NO
IS
E
(
fA/
Hz
)
FREQUENCY (Hz)
00777-
006
Figure 6. Current Noise Spectral Density vs. Frequency
140
120
100
80
60
40
20
0
0.1
1M
100k
10k
1k
100
10
1
CM
R
(
d
B)
FREQUENCY (Hz)
G = 1000
G = 100
G = 10
G = 1
00777-
007
Figure 7. CMR vs. Frequency, RTI, 0 k to 1 k Source Imbalance