Measurement Computing PCI-DAS6023 - Manual (Page 32)

PCI-DAS6023 and PCI-DAS6025 User's Guide Specifications
32
Table 3. Absolute accuracy components - all values are (±)
Range % of
Reading
Offset
(mV)
Averaged Noise +
Quantization (mV) 1
Temp Drift
(%/ C)
Absolute Accuracy
at FS (mV)
±10 V 0.0558 2.930 1.262 0.0010 9.77
±5 V 0.0563 1.460 0.605 0.0010 4.88
±500 mV 0.1046 0.150 0.057 0.0010 0.73
±50 mV 0.1340 0.024 0.007 0.0010 0.098
1 Averaged measurements assume dithering and averaging of 100 single-channel readings.
Table 4. Differential non-linearity specifications
All ranges ±0.5 LSB typ ±1.0 LSB max
System throughput
Table 5. System throughput specifications
Condition Calibration Coefficients ADC Rate (max)
1.
1. Single channel, single input range. Per specified range 200 kS/s
2.
2. Multiple channel, single input range Per specified range 200 kS/s
3.
3. Single channel, multiple input
ranges.
Default to value for cbAInScan() range 200 kS/s
Note 1: 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 here 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 a specified rate. A –FS DC signal is presented to
channel 1; a +FS DC signal is presented to channel 0.
Table 6. Settling time specifications
Condition Range Accuracy
±0.012%
(±0.5 LSB)
±0.024%
(±1.0 LSB)
±0.098%
(±4.0 LSB)
Same range to same range ±10 V 5 µS typ 5 µS max 5 µS max
±5 V 5 µS typ 5 µS max 5 µS max
±500 mV 5 µS typ 5 µS max 5 µS max
±50 mV 5 µS typ 5 µS max 5 µS max
Any range to any range - 25 µS typ 20 µS typ 15 µS typ