Measurement Computing PCI-DAS64/M2/16 - Manual (Page 26)

PCI-DAS64/M2/16 User's Guide Specifications
System throughput
Table 2. System throughput specifications
Condition Calibration coefficients Max ADC
rate
1. Single channel, single input range. Per specified range 2.0 MS/s
2. Multiple-channel, single-input range: ±5 V,
±2.5 V, ±1.25 V, 0 to 5 V, 0 to 2.5 V
Per specified range 1.5 MS/s
3. Multiple channel, single input range: ±0.625 V, 0
to 1.25 V
Per specified range 750 kS/s
4. Single channel, multiple input ranges. Default to value for cbAInScan() range 500 kS/s
5. Multiple channels, multiple ranges. All samples in
unipolar or bipolar bode.
Default to value for cbAInScan() range 500 kS/s
6. Multiple channels, multiple ranges. All samples in
unipolar and/or bipolar bode.
Default to value for cbAInScan() range 500 kS/s
7. Multiple-channel, switching unipolar/bipolar
mode, single-input range.
Default to value for cbAInScan() range 750 kS/s
Note 1: For conditions 1-3, specified accuracy is maintained at rated throughput. Conditions 4-7 apply
calibration coefficients which correspond to the range value selected in
cbAInScan() . These
coefficients remain unchanged throughout the scan. Errors of up to 25 counts may be incurred
when switching gains while in bipolar or unipolar mode only (conditions 4 and 5). Errors of up to
500 counts may be incurred when mixing unipolar/bipolar modes (conditions 6 and 7).
Accuracy
A 100 kS/s sampling rate, single-channel operation and a 60-minute warm-up. Accuracies are listed for
operational temperatures within ±2ºC of internal calibration temperature. Calibrator test source high side tied to
channel 0 and low side tied to low-level ground at the user connector
Table 3. Analog input — absolute accuracy specifications
Table 3
Range Absolute accuracy
±5.000 V ±6.0 LSB
±2.500 V ±8.0 LSB
±1.250 V ±8.0 LSB
±0.625 V ±10.0 LSB
0 V to +5.000 V ±8.0 LSB
0 V to +2.500 V ±11.0 LSB
0 V to +1.250 V ±13.0 LSB
Table 4. Analog input — typical accuracy specifications
Range Typical accuracy
±5.000 V ±5.5 LSB
±2.500 V ±7.5 LSB
±1.250 V ±7.5 LSB
±0.625 V ±9.5 LSB
0 V to +5.000 V ±7.5 LSB
0 V to +2.500 V ±10.5 LSB
0 V to +1.250 V ±12.5 LSB
Each PCI-DAS64/M2/16 is tested at the factory to assure the board’s overall error does not exceed accuracy
limits shown in
.
6-5