Input Bandwidth; Noise Performance - Measurement Computing USB-2416 User Manual

USB-2416 User's Guide
Range A/D data
rate
±0.078125 V 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

Input bandwidth

A/D data rate
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

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.
Range 3750 S/s
±20 V 230.31
±10 V 126.84
±5 V 56.74
±2.5 V 32.96
±1.25 V 18.57
±0.625 V 18.88
±0.3125 V 15.33
±0.156 25V 13.28
±0.078125 V 13.47
Gain error Offset
(% of error
reading)
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
0.035 6 µV
Table 13. input bandwidth
–3db Bandwidth (Hz)
1615
878
441
221
44.2
26.5
22.1
11.1
4.42
2.21
1.1
Table 14. Peak to Peak noise performance specifications (µV)
2000 S/s 1000 S/s
186.92 126.84
100.14 71.76
47.56 34.21
28.79 17.94
17.52 13.83
16.58 8.45
14.76 8.19
16.84 7.47
15.02 9.17
INL error Absolute
(% of accuracy
range)
0.0009 33.547 µV
0.0009 34.252 µV
0.0009 33.696 µV
0.0009 34.002 µV
0.0009 34.005 µV
0.0009 33.866 µV
0.0009 34.026 µV
0.0009 33.933 µV
0.0009 33.937 µV
0.0009 33.969 µV
0.0009 33.934 µV
A/D data rate
500 S/s 100 S/s 60 S/s
100.14 57.22 57.22
45.06 30.52 30.52
25.87 16.21 14.31
14.19 7.51 7.09
9.30 5.48 5.48
7.41 5.32 4.80
6.94 4.75 4.69
6.61 5.70 4.48
6.88 4.28 4.16
33
Specifications
Gain temperature Offset temperature
coefficient (% coefficient (µV/°C)
reading/°C)
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
0.0006 1
50 S/s 25 S/s 10 S/s
49.59 47.58 23.84
26.70 19.07 11.92
14.31 14.30 5.96
7.09 5.72 3.81
5.01 3.81 3.34
4.38 3.86 2.50
4.49 3.70 3.34
4.48 4.24 2.66
4.00 3.57 2.28
5 S/s 2.5 S/s
23.84 14.31
9.54 9.54
4.77 4.77
2.86 2.38
3.34 2.86
2.61 1.98
2.56 2.45
3.07 2.29
2.13 2.40