National Instruments NI 6115/6120 User Manual
Page 82
Appendix A
Specifications
© National Instruments Corporation
A-3
Table A-1. NI 6115 Analog Input DC Accuracy Information
Nominal
Range
(V)
Absolute Accuracy
Relative Accuracy
% of Reading
Offset
(mV)
Noise +
Quantization (mV)
Temp
Drift
(%/°C)
Absolute
Accuracy at
Full Scale
(±mV)
Resolution (mV)
Full
Scale
24 Hours
1 Year
Single
Pt.
Averaged
Single
Pt.
Averaged
±50
0.346
0.348
33
42
3.6
0.0229
211.0
48
4.8
±20
0.271
0.273
13
17
1.4
0.0229
69.4
19
1.9
±10
0.026
0.028
6.7
8.3
0.72
0.0004
10.22
10
1.0
±5
0.016
0.018
3.4
4.2
0.36
0.0004
4.61
4.8
0.48
±2
0.036
0.038
1.3
1.8
0.16
0.0004
2.26
2.1
0.21
±1
0.043
0.045
0.68
1.1
0.09
0.0004
1.23
1.2
0.12
±0.5
0.058
0.060
0.35
0.69
0.061
0.0004
0.71
0.80
0.080
±0.2
0.103
0.105
0.15
0.43
0.039
0.0004
0.39
0.51
0.051
Table A-2. NI 6120 Analog Input DC Accuracy Information
1
Nominal
Range
(V)
Absolute Accuracy
Relative Accuracy
% of Reading
Offset
(µV)
2,3
Noise + Quantization
(µV)
Temp
Drift
(%/°C)
Absolute
Accuracy
at Full
Scale
(±mV)
Resolution (µV)
Full
Scale
24
Hours
1 Year
Single
Pt.
Averaged
Single
Pt.
Averaged
±50
0.157
0.159
7,799.2
5,621.9
503.5
0.0106
86.92
6,629.9
663.0
±20
0.139
0.141
3,120.7
2,248.7
201.4
0.0106
31.11
2652.0
265.2
±10
0.033
0.034
1,561.1
1,124.4
100.7
0.0006
4.94
1326.0
132.6
±5
0.036
0.37
781.4
562.2
50.4
0.0006
2.61
663.0
66.3
±2
0.039
0.041
344.0
224.9
20.1
0.0006
1.15
265.2
26.5
±1
0.077
0.079
264.4
150.0
13.7
0.0006
1.05
180.8
18.1
±0.5
0.100
0.102
178.8
144.3
13.7
0.0006
0.69
180.8
18.1
±0.2
0.123
0.125
90.8
112.8
11.0
0.0006
0.35
144.7
14.5
1
Accuracies are valid for measurements following an internal calibration. Averaged numbers assume dithering and
averaging of 100 single-channel readings. Measurement accuracies are listed for operational temperatures within ±1 °C
of internal calibration temperature and ±10 °C of external or factory-calibration temperature.
2
The offset might degrade by 3 LSB with filter enabled.
3
The offset might degrade by 1 LSB when sampling above 500 kS/s.