Measurement Computing USB-2416, Руководство пользователя

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USB-2416 User's Guide Specifications
33
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)
±0.078125 V 3750 S/s 0.035 6 µV 0.0009 33.547 µV 0.0006 1
2000 S/s 0.035 6 µV 0.0009 34.252 µV 0.0006 1
1000 S/s 0.035 6 µV 0.0009 33.696 µV 0.0006 1
500 S/s 0.035 6 µV 0.0009 34.002 µV 0.0006 1
100 S/s 0.035 6 µV 0.0009 34.005 µV 0.0006 1
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 –3db 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
±0.156 25V 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