Measurement Computing PCI-DAS6013 - Manual (Page 32)

PCI-DAS6013 and PCI-DAS6014 User's Guide Specifications
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Table 2. Absolute accuracy components specifications - All values are (±)
Range % of
Reading Offset
(µV) Averaged Noise +
Quantization (µV)
1
Temp Drift (%/DegC) Absolute
Accuracy at FS
(mV)
±10 V 0.070 1800 180 0.001 8.984
±5 V 0.020 918 85 0.001 2.003
±500 mV 0.070 109 12 0.001 0.471
±50 mV 0.070 27 7 0.001 0.069
1 Averaged measurements assume averaging of 100 single-channel readings.
Each PCI-DAS6013 and PCI-DAS6014 is tested at the factory to assure the board’s overall error does not
exceed accuracy limits described in Table 1.
Table 3. Differential non-linearity specifications
All ranges ±0.5 LSB ty,p ±1.0 LSB max
No missing codes 16 bits, guaranteed
System throughput
Condition Calibration Coefficients ADC Rate (max)
1. Single channel, single input range Per specified range 200 kS/s
2. Multiple channel, single input range Per specified range 200 kS/s
3. Single channel, multiple input ranges Default to value for cbAInScan() range parameter 200 kS/s
Note 2: For conditions 1-2 above, specified accuracy is maintained at rated throughput. Condition 3
applies a calibration coefficient which corresponds to the range value selected in
cbAInScan() .
This coefficient remains unchanged throughout the scan. Increased settling times may occur
during gain-switching operations.
Settling time
Settling time is defined as the time required for a channel to settle to within a specified accuracy in response to
a full-scale (FS) step. Two channels are scanned at the specified rate. A –FS DC signal is presented to
channel 1; a +FS DC signal is presented to channel 0.
Condition Range Accuracy
±0.0031%
(±2.0 LSB)
±0.0062%
(±4.0 LSB)
Same range to same range ±10 V 5 µs typ *
±5 V 5 µs max *
±500 mV 5 µs typ *
±50 mV * 5 µs typ