Accuracy
±0.5 LSB typ, ±2.0 LSB max
Differential Linearity Error
±0.5 LSB typ , ±3.0 LSB max
Integral Linearity Error
±1.3 LSB typ , ±10.0 LSB max
PGA Linearity Error
Trimmable by potentiometer to 0
Offset Error
Trimmable by potentiometer to 0
Gain Error
Accuracy Components
±5.0 LSB
Absolute Accuracy
±2.3 LSB
Typical Accuracy
Each PCIM-DAS1602/16 is tested at the factory to assure the board’s overall error does not exceed ±5 LSB.
Total board error is a combination of Gain, Offset, Differential Linearity and Integral Linearity error. The
theoretical absolute accuracy of the board may be calculated by summing these component errors. Worst case error
is realized only in the unlikely event that each of the component errors are at their maximum level, and causing
error in the same direction.
Analog Input Drift
7.1 LSB/°C max
3.0 LSB/°C max
4.1 LSB/°C max
0 - 1.250V
6.5 LSB/°C max
2.4 LSB/°C max
4.1 LSB/°C max
0 - 2.500V
6.2 LSB/°C max
2.1 LSB/°C max
4.1 LSB/°C max
0 - 5.000V
6.0 LSB/°C max
1.9 LSB/°C max
4.1 LSB/°C max
0 - 10.00V
4.5 LSB/°C max
2.3 LSB/°C max
2.2 LSB/°C max
+/- 1.250V
4.2 LSB/°C max
2.0 LSB/°C max
2.2 LSB/°C max
+/- 2.500V
4.1 LSB/°C max
1.9 LSB/°C max
2.2 LSB/°C max
+/- 5.000V
4.0 LSB/°C max
1.8 LSB/°C max
2.2 LSB/°C max
+/- 10.00V
Overall Analog Input Drift
Analog Input Zero Drift
Analog Input Full-Scale Gain
Range
Absolute error change per °C Temperature change is a combination of the Gain and Offset drift of many
components. The theoretical worst case error of the board may be calculated by summing these component errors.
Worst case error is realized only in the unlikely event that each of the component errors are at their maximum
level, and causing error in the same direction.
Noise Performance
The following table summarizes the worst case noise performance for the PCIM-DAS1602/16. Noise distribution
is determined by gathering 50000 samples with inputs tied to ground at the PCIM-DAS1602/16 main connector.
Data is for both Single-Ended and Differential modes of operation.
2.4
16
61%
83%
0 - 1.250V
2.3
15
61%
83%
0 - 2.500V
2.3
15
65%
88%
0 - 5.000V
2.3
15
65%
88%
0 - 10.00V
1.7
11
79%
96%
+/- 1.250V
1.7
11
79%
96%
+/- 2.500V
1.7
11
80%
97%
+/- 5.000V
1.7
11
80%
97%
+/- 10.00V
LSBrms*
Max Counts
±1 count
±2 counts
Range
Noise Performance
* Input noise is assumed to be Gaussian. An RMS noise value from a Gaussian distribution is calculated by
dividing the peak-to-peak bin spread by 6.6
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Содержание PCIM-DAS1602/16
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