Measurement Computing USB-2416-4AO, User Manual

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USB-2416-4AO User's Guide Specifications
34
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