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OMB-DAQ-2416-4AO User's Guide Specifications
37
Range
A/D
data
rate
Gain error
(% of
reading)
Offset
error
INL
error (%
of
range)
Absolute
accuracy
Gain
temperature
coefficient (%
reading/°C)
Offset
temperature
coefficient
(µV/°C)
60 S/s
0.035
6 µV
0.0009
33.866 µV
0.0006
1
50 S/s
0.035
6 µV
0.0009
34.026 µV
0.0006
1
25 S/s
0.035
6 µV
0.0009
33.933 µV
0.0006
1
10 S/s
0.035
6 µV
0.0009
33.937 µV
0.0006
1
5 S/s
0.035
6 µV
0.0009
33.969 µV
0.0006
1
2.5 S/s
0.035
6 µV
0.0009
33.934 µV
0.0006
1
Input bandwidth
Table 13. input bandwidth
A/D data rate
-3 dB Bandwidth (Hz)
3750 S/s
1615
2000 S/s
878
1000 S/s
441
500 S/s
221
100 S/s
44.2
60 S/s
26.5
50 S/s
22.1
25 S/s
11.1
10 S/s
4.42
5 S/s
2.21
2.5 S/s
1.1
Noise performance
For the peak-to-peak noise distribution test, a differential input channel is connected to GND at the input
terminal block, and 50,000 samples are acquired at the maximum rate available at each setting.
Table 14. Peak-to-peak noise performance specifications (µV)
A/D data rate
Range
3750 S/s
2000 S/s
1000 S/s
500 S/s
100 S/s
60 S/s
50 S/s
25 S/s
10 S/s
5 S/s
2.5 S/s
±20 V
230.31
186.92
126.84
100.14
57.22
57.22
49.59
47.58
23.84
23.84
14.31
±10 V
126.84
100.14
71.76
45.06
30.52
30.52
26.70
19.07
11.92
9.54
9.54
±5 V
56.74
47.56
34.21
25.87
16.21
14.31
14.31
14.30
5.96
4.77
4.77
±2.5 V
32.96
28.79
17.94
14.19
7.51
7.09
7.09
5.72
3.81
2.86
2.38
±1.25 V
18.57
17.52
13.83
9.30
5.48
5.48
5.01
3.81
3.34
3.34
2.86
±0.625 V
18.88
16.58
8.45
7.41
5.32
4.80
4.38
3.86
2.50
2.61
1.98
±0.3125 V
15.33
14.76
8.19
6.94
4.75
4.69
4.49
3.70
3.34
2.56
2.45
±0.15625 V
13.28
16.84
7.47
6.61
5.70
4.48
4.48
4.24
2.66
3.07
2.29
±0.078125 V
13.47
15.02
9.17
6.88
4.28
4.16
4.00
3.57
2.28
2.13
2.40