Measurement Computing PCI-DAS6402/16 - Manual (Page 25)

PCI-DAS6402/16 User's Guide Specifications
Noise performance
Table 7
Table 7. Board noise performance
below summarizes the noise performance for the PCI-DAS6402/16. Noise distribution is determined by
gathering 50K samples with inputs tied to ground at the user connector.
Range Standard
Deviation
% within ±2
counts % within ±1
count MaxCounts LSBrms*
±10.00 V 0.8 98% 78% 9 1.4
±5.000 V 0.8 98% 78% 9 1.4
±2.500 V 0.8 98% 78% 9 1.4
±1.250 V 0.9 97% 73% 10 1.5
0 to +10.00 V 0.9 97% 73% 10 1.5
0 to +5.000 V 0.9 97% 73% 10 1.5
0 to +2.500 V 0.9 97% 73% 10 1.5
0 to +1.250 V 1.0 95% 68% 11 1.7
* RMS noise is defined as the peak-to-peak bin spread divided by 6.6
Analog output
Table 8. Analog output specifications
A/D converter type AD669BR
Resolution 16-bits
Number of Channels
2
Voltage ranges ±10 V, ±5 V, 0 to 10 V, 0 to 5 V. Each channel independently programmable.
Monotonicity Guaranteed monotonic over temperature
Analog output full-scale gain drift ±0.55 LSB/°C
Analog output zero drift 10 V ranges: ±0.25 LSB/°C; 5 V ranges: ±0.45 LSB/°C
Overall analog output drift 10 V ranges: ±0.8 LSB/°C; 5 V ranges: ±1.0 LSB/°C
Slew rate 10 V Ranges: 5 V/µs; 5 V ranges: 2.5 V/µs;
Settling time 20 V step to .0008%:13 µs max; 10 V step to .0008%:6 µs typ
Current drive ±15 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 ±75 mV max
Accuracy
Table 9. Absolute accuracy specifications
Range Absolute accuracy
±10.000 V ±4.0 LSB
±5.000 V ±4.0 LSB
0 to +10.000 V ±4.0 LSB
0 to +5.000 V ±4.0 LSB
5-4