Analog output pacing and triggering, Analog input / output calibration – Measurement Computing PCI-DAS6013 User Manual
Page 34
PCI-DAS6013 and PCI-DAS6014 User's Guide
Specifications
34
Table 5. Analog output absolute accuracy specifications
Range
Absolute Accuracy
±10 V
±12.6 LSB
Table 6. Absolute accuracy components specifications
Range
% of Reading
(1 year)
Offset
(mV)
Temp Drift
(%/DegC)
Absolute Accuracy at FS (mV)
±10 V
±0.02
±1.9
±0.0005
±3.84
Each PCI-DAS6014 is tested at the factory to assure the board’s overall error does not exceed the absolute
accuracy specification listed in Table 5.
Table 7. Relative accuracy specifications
Range
Relative Accuracy
±10 V
±3.0 LSB, typ
Relative accuracy is defined as the measured deviation from a straight line drawn between measured endpoints
of the transfer function.
Analog output pacing and triggering
DAC pacing
(software programmable)
Internal counter – ASIC. Selectable time base:
Internal 40 MHz, 50 ppm stability.
External source via AUXIN<5:0>, software selectable.
External convert strobe: D/A UPDATE
Software paced
DAC gate source
(software programmable)
External digital: D/A START TRIGGER
Software gated
DAC gating modes
External digital: Programmable, active high or active low, level or edge
DAC trigger sources
External digital: D/A START TRIGGER
Software triggered
DAC triggering modes
External digital: Software-configurable for rising or falling edge.
DAC pacer out
Available at user connector: D/A PACER OUT
RAM buffer size
16 K samples
Data transfer
DMA
Programmed I/O
Update DACs individually or simultaneously, software selectable.
DMA modes
Demand or non-demand using scatter gather.
Waveform generation
throughput
10 kS/s max per channel, 2 channels simultaneous
Analog input / output calibration
Recommended warm-up time
15 minutes
Calibration
Auto-calibration, calibration factors for each range stored on board in non-volatile
RAM.
Onboard calibration reference
DC Level: 10.000 V ± 5 mV. Actual measured values stored in EEPROM.
Tempco: 5 ppm/°C max, 2 ppm/°C typical
Long-term stability: 15 ppm, T = 1000 hrs, non-cumulative
Calibration interval
1 year