Noise Performance; Analog Output; Accuracy - Measurement Computing PCI-DAS6402/16 User Manual

PCI-DAS6402/16 User's Guide

Noise performance

Table 7 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
±10.00 V 0.8
±5.000 V 0.8
±2.500 V 0.8
±1.250 V 0.9
0 to +10.00 V 0.9
0 to +5.000 V 0.9
0 to +2.500 V 0.9
0 to +1.250 V 1.0
* RMS noise is defined as the peak-to-peak bin spread divided by 6.6

Analog output

A/D converter type
Resolution
Number of Channels
Voltage ranges
Monotonicity
Analog output full-scale gain drift
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
±10.000 V
±5.000 V
0 to +10.000 V
0 to +5.000 V
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Table 7. Board noise performance
% within ±2 % within ±1
counts count
98% 78%
98% 78%
98% 78%
97% 73%
97% 73%
97% 73%
97% 73%
95% 68%
Table 8. Analog output specifications
AD669BR
16-bits
2
±10 V, ±5 V, 0 to 10 V, 0 to 5 V. Each channel independently programmable.
Guaranteed monotonic over temperature
±0.55 LSB/°C
10 V ranges: ±0.25 LSB/°C; 5 V ranges: ±0.45 LSB/°C
10 V ranges: ±0.8 LSB/°C; 5 V ranges: ±1.0 LSB/°C
10 V Ranges: 5 V/µs; 5 V ranges: 2.5 V/µs;
20 V step to .0008%:13 µs max; 10 V step to .0008%:6 µs typ
±15 mA
Indefinite @ 25 mA
DC
0.1 ohms
DACs cleared to 0 volts ±75 mV max
Table 9. Absolute accuracy specifications
Absolute accuracy
±4.0 LSB
±4.0 LSB
±4.0 LSB
±4.0 LSB
5-4
Specifications
MaxCounts LSBrms*
9 1.4
9 1.4
9 1.4
10 1.5
10 1.5
10 1.5
10 1.5
11 1.7