Datasheet

AD8231
Rev. B | Page 9 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
INSTRUMENTATION AMPLIFIER PERFORMANCE CURVES
1000
0
200
400
600
800
–100 –80 –60 –40 –20 0 20 40 60 80 100
HITS
CMRR (µV/V)
N: 5956
MEAN: 0.977167
SD: 11.8177
06586-100
Figure 3. Instrumentation Amplifier CMR Distribution, G = 1
800
700
600
500
400
300
200
100
0
–15 –10 –5 0 5 10 15
HITS
V
OSI
(µV)
N: 5956
MEAN: 2.06788
SD: 1.07546
06586-101
Figure 4. Instrumentation Amplifier Input Offset Voltage Distribution
800
700
600
500
400
300
200
100
0
–30 –20 –10 0 10 20 30
HITS
V
OSO
(µV)
N: 5956
MEAN: 10.3901
SD: 3.9553
06586-102
Figure 5. Instrumentation Amplifier Output Offset Voltage Distribution
1400
1200
1000
800
600
400
200
0
–500 –400 –300 –200 –100 0 100 200 300 400 500
HITS
GAIN ERROR (µV/V)
N: 5956
MEAN: –48.0779
SD: 21.0433
06586-103
Figure 6. Instrumentation Amplifier Gain Distribution, G = 1
9
8
7
6
5
4
3
2
1
0
–50 –40 –30 –20 –10 0 10 20 30 40 50
NUMBER OF AMPLIFIERS
INPUT OFFSET DRIFT (nV/°C)
06586-104
N: 40
MEAN: –8.31
SD: 6
Figure 7. Instrumentation Amplifier Input Offset Voltage Drift,
−40°C to +125°C
16
14
12
10
8
6
4
2
0
–0.5 –0.4 –0.3 –0.2 –0.1 0 0.1 0.2 0.3 0.4 0.5
NUMBER OF AMPLIFIERS
OUTPUT OFFSET DRIFT (µV/°C)
06586-105
N: 40
MEAN: –0.003
SD: 0.061
Figure 8. Instrumentation Amplifier Output Offset Drift, −40°C to +125°C