PCI-DAS1602/12 User's Guide
Specifications
23
Noise performance
Table 5 summarizes the noise performance for the PCI-DAS1602/12. Noise distribution is determined by
gathering 50 K samples @ 330 kHz with inputs tied to ground at the user connector.
Table 5. Noise performance specifications
Range
% within ±2 counts
% within ±1 count
MaxCounts
LSBrms*
±10 V
100%
100%
3
0.45
±5 V
100%
100%
3
0.45
±2.5 V
100%
100%
3
0.45
±1.25 V
100%
100%
5
0.76
0 to +10 V
100%
100%
3
0.45
0 to +5 V
100%
100%
3
0.45
0 to +2.5 V
100%
100%
3
0.45
0 to +1.25 V
100%
100%
5
0.76
* RMS noise is defined as the peak-to-peak bin spread divided by 6.6.
Analog output
Table 6. Analog output specifications
A/D converter type
AD7945BR multiplying type
Resolution
12-bits
Number of channels
2
Voltage ranges
±10 V, ±5 V, 0 to 5 V, 0 to 10 V. Each independently programmable
Monotonicity
Guaranteed monotonic over temperature
Overall analog output drift
±0.02 LSB/°C
Slew rate
±10 V Range:
15 V/µs
±5 V Range:
10 V/µs
0 to 10 V Range:
7.5V/µs
0 to 5 V Range:
5 V/µs
Settling time
20 V step to 0.012%: 4 µs max
Current drive
±5 mA
Output short-circuit duration
Indefinite @ 25 mA
Output coupling
DC
Output impedance
0.1 ohms
Power up and reset
DACs cleared to 0 volts ±200 mV max
Accuracy
Table 7. Absolute accuracy specifications
Range
Absolute Accuracy
±10 V
±3.0 LSB
±5 V
±3.0 LSB
0 V to +10 V
±3.0 LSB
0 V to +5 V
±3.0 LSB
Содержание PCI-DAS1602
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