AD622
Typical Characteristics
(@ +25 C, V =
S
2
INPUT OFFSET VOLTAGE – V
15 V, R
L
= 2 k , unless otherwise noted)
140
120
G = 1000
G = 100
100
G = 10
CMR – dB
1.5
80
G=1
60
40
20
1
0.5
0
0
1
2
3
WARM-UP TIME – Minutes
4
5
0
0.1
1
10
100
1k
FREQUENCY – Hz
10k
100k
1M
Figure 3. Change in Input Offset Voltage vs. Warm-Up
Time
Figure 6. CMR vs. Frequency, RTI, Zero to 1 k
Ω
Source
Imbalance
1000
180
160
VOLTAGE NOISE – nV/
Hz
GAIN = 1
POSITIVE PSR – dB
140
G = 1000
120
100
80
G = 10
60
GAIN = 1000
BW LIMIT
40
0
0.1
G=1
100
GAIN = 10
G = 100
10
GAIN = 100, 1,000
1
1
10
100
1k
FREQUENCY – Hz
10k
100k
1
10
100
1k
FREQUENCY – Hz
10k
100k
1M
Figure 4. Voltage Noise Spectral Density vs. Frequency,
(G = 1–1000)
Figure 7a. Positive PSR vs. Frequency, RTI (G = 1–1000)
1000
180
160
CURRENT NOISE – fA/
Hz
140
NEGATIVE PSR – dB
120
100
80
G = 100
60
G = 10
40
G=1
100
G = 1000
10
0
10
100
FREQUENCY – Hz
1000
0
0.1
1
10
100
1k
FREQUENCY – Hz
10k
100k
1M
Figure 5. Current Noise Spectral Density vs. Frequency
Figure 7b. Negative PSR vs. Frequency, RTI (G = 1–1000)
REV. C
–5–
AD [ ANALOG DEVICES ]
