AD622
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
S
= ±15 V, R
L
= 2 kΩ, unless otherwise noted.
50
SAMPLE SIZE = 191
40
VOLTAGE NOISE (nV/ Hz)
PERCENTAGE OF UNITS
1000
GAIN = 1
100
30
GAIN = 10
20
10
GAIN = 100, 1000
GAIN = 1000
BW LIMIT
10
00777-002
–0.8
–0.4
0
0.4
0.8
1.2
1
10
100
1k
10k
100k
OUTPUT OFFSET VOLTAGE (mV)
FREQUENCY (Hz)
Figure 2. Typical Distribution of Output Offset Voltage
50
SAMPLE SIZE = 383
40
Figure 5. Voltage Noise Spectral Density vs. Frequency (G = 1 to 1000)
1000
30
CURRENT NOISE (fA/ Hz)
PERCENTAGE OF UNITS
100
20
10
00777-003
60
80
100
120
140
1
10
100
FREQUENCY (Hz)
1000
COMMON-MODE REJECTION RATIO (dB)
Figure 3. Typical Distribution of Common-Mode Rejection
2.0
140
120
INPUT OFFSET VOLTAGE (µV)
Figure 6. Current Noise Spectral Density vs. Frequency
G = 1000
G = 100
G = 10
1.5
100
CMR (dB)
80
G=1
60
40
20
1.0
0.5
00777-004
0
1
2
3
4
5
1
10
100
1k
10k
100k
1M
WARM-UP TIME (Minutes)
FREQUENCY (Hz)
Figure 4. Change in Input Offset Voltage vs. Warm-Up Time
Figure 7. CMR vs. Frequency, RTI, 0 kΩ to 1 kΩ Source Imbalance
Rev. D | Page 6 of 16
00777-007
0
0
0.1
00777-006
0
10
00777-005
0
–1.2
1
AD [ ANALOG DEVICES ]
