Measurement Computing USB-2416-4AO, User Manual

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USB-2416-4AO User's Guide Specifications
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Table 15. 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
±20 V
34.90 28.32 19.22 15.17 8.67 8.67 7.51 7.22 3.61 3.61 2.17
±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 0.43 0.36
±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 16. 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
±20 V
17.4 17.7 18.2 18.6 19.4 19.4 19.6 19.6 20.6 20.6 21.4
±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
±1.25 V
17.0 17.1 17.4 18.0 18.8 18.8 18.9 19.3 19.5 19.5 19.7
±0.625 V
16.0 16.2 17.1 17.3 17.8 18.0 18.1 18.3 18.9 18.8 19.2
±0.3125 V
15.3 15.3 16.2 16.4 17.0 17.0 17.0 17.3 17.5 17.9 17.9
±0.15625 V
14.5 14.1 15.3 15.5 15.7 16.1 16.1 16.1 16.8 16.9 17.1
±0.078125 V
14.5 14.3 15.0 15.4 16.1 16.2 16.2 16.4 17.0 17.1 16.9
Channel switching error
Table 17. Step response accuracy specifications
Accuracy
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
0.0011% 0.0006% 0.0004% 0.0003% 0.0002% 0.0002% 0.0002% 0.0002% 0.0001% 0.0001% 0.0001%
±10 V
0.0010% 0.0008% 0.0005% 0.0004% 0.0002% 0.0002% 0.0003% 0.0002% 0.0001% 0.0001% 0.0001%
±5 V
0.0009% 0.0008% 0.0004% 0.0004% 0.0003% 0.0002% 0.0002% 0.0002% 0.0001% 0.0001% 0.0001%
±2.5 V
0.0010% 0.0007% 0.0008% 0.0004% 0.0003% 0.0002% 0.0002% 0.0002% 0.0002% 0.0001% 0.0001%
±1.25 V
0.0013% 0.0009% 0.0008% 0.0007% 0.0004% 0.0004% 0.0003% 0.0003% 0.0003% 0.0003% 0.0003%
±0.625 V
0.0022% 0.0016% 0.0011% 0.0011% 0.0007% 0.0007% 0.0005% 0.0005% 0.0004% 0.0005% 0.0003%
±0.3125 V
0.0031% 0.0031% 0.0020% 0.0017% 0.0015% 0.0012% 0.0010% 0.0010% 0.0012% 0.0009% 0.0009%
±0.15625 V
0.0056% 0.0062% 0.0048% 0.0037% 0.0032% 0.0025% 0.0024% 0.0021% 0.0019% 0.0022% 0.0016%
±0.078125 V
0.0114% 0.0123% 0.0076% 0.0070% 0.0041% 0.0051% 0.0046% 0.0036% 0.0032% 0.0030% 0.0034%
Channel switching error is defined as the accuracy that can be expected after one conversion when switching
from a channel with a DC input at one extreme of full scale to another channel with a DC input at the other
extreme of full scale, expressed in terms of percentage of full scale value.