Noise Performance; Analog Output; Accuracy - Measurement Computing PCI-DAS64/M1/16 User Manual

PCI-DAS64/M1/16 User's Guide

Noise performance

Table 8 summarizes the worst case noise performance for the PCI-DAS64/M1/16. Noise distribution is
determined by gathering 50 K samples with inputs tied to ground at the user connector. Samples are gathered at
the maximum specified single-channel sampling rate. Specification applies to both single-ended and differential
modes of operation.
Range
± 5.000 V
± 2.500 V
± 1.250 V
± 0.625 V
0 to +5.000 V
0 to +2.500 V
0 to +1.250 V
RMS noise is defined as the peak-to-peak bin spread divided by 6.6.
Note 2:

Analog output

Resolution
Number of channels
Voltage range
Monotonicity
Analog output zero drift
Overall analog output drift
Slew rate
Settling time
Current drive
Output short-circuit duration
Output coupling
Output impedance
Power up and reset

Accuracy

Range Absolute accuracy
± 5 V ±16.0 LSB
Range Gain error (LSB)
±5.0 V ±10.0 max
Each PCI-DAS64/M1/16 is tested at the factory to assure the board's overall error does not exceed the absolute
accuracy limits listed in
Table 8. Noise performance specifications
±2 counts ±1 count
60% 40%
60% 40%
60% 40%
45% 30%
60% 40%
60% 40%
45% 30%
Table 9. Analog output specifications
16-bits
2
±5 V
Guaranteed monotonic over temperature
±1.6 LSB/°C
±4.0 LSB/°C
2.5 V/µs
FS step to .0008%: 6µs max, all ranges
±15 mA
Indefinite @25 mA
DC
0.1 Ω
DACs cleared to 0 V±75 mV max
Table 10. Analog output — absolute accuracy specifications
Table 11 Analog output — accuracy components specifications
Offset error (LSB)
±5.0 max
Table 10 .
MaxCounts
22
24
26
32
24
26
32
DLE (LSB)
±1.0 max
6-7
Specifications
LSBrms (Note 2)
3.3
3.6
3.9
4.8
3.6
3.9
4.8
ILE (LSB)
±1.0 max