PCI-DAS64/M1/16 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
1.0 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
1.0 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
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/M1/16 is tested at the factory to assure the board’s overall error does not exceed accuracy
limits shown in
6-5
Summary of Contents for PCI-DAS64/M1/16
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