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OMB-DAQ-2408 Series User's Guide
Specifications
24
Input bandwidth
Table 6. 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 AGND at the input
terminal block, and 50,000 samples are acquired at the maximum rate available at each setting.
Table 7. 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
±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
4.00
4.00
±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
Table 8. RMS noise performance specifications (µVRMS)
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
±10 V
19.22
15.17
10.87
6.83
4.62
4.62
4.05
2.89
1.81
1.44
1.44
±5 V
8.60
7.21
5.18
3.92
2.46
2.17
2.17
2.16
0.90
0.72
0.72
±2.5 V
4.99
4.36
2.72
2.15
1.14
1.07
1.07
0.87
0.58
0.60
0.60
±1.25 V
2.81
2.66
2.10
1.41
0.83
0.83
0.76
0.58
0.51
0.51
0.43
±0.625 V
2.86
2.51
1.28
1.12
0.81
0.73
0.66
0.58
0.38
0.40
0.30
±0.3125 V
2.32
2.24
1.24
1.05
0.72
0.71
0.68
0.56
0.51
0.39
0.37
±0.15625 V
2.01
2.55
1.13
1.00
0.86
0.68
0.68
0.64
0.40
0.47
0.35
±0.078125 V
2.04
2.28
1.39
1.04
0.65
0.63
0.60
0.54
0.35
0.32
0.36
Table 9. Noise-free resolution specifications (bits)
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
±10 V
17.2
17.6
18.1
18.7
19.3
19.3
19.5
20.0
20.6
21.0
21.0
±5 V
17.4
17.6
18.1
18.5
19.2
19.4
19.4
19.4
20.6
21.0
21.0
±2.5 V
17.2
17.4
18.1
18.4
19.3
19.4
19.4
19.7
20.3
20.7
21.0