Measurement Computing PCI-DAS6071 - Manual (Page 40)

PCI-DAS6071 User's Guide Specifications
40
Analog output pacing and triggering
Table 14. External reference input (D/A EXTREF)specifications
Parameter Specification
DAC pacing
(software programmable) Internal counter – ASIC. Selectable time base:
 Internal 40 MHz
 External Source via AUXIN<5:0>, SW selectable.
External convert strobe:
D/A UPDATE
Software paced
DAC gate source
(software programmable) External digital: D/A START TRIGGER
External analog: ATRIG input
CH0 IN through CH63 IN
Software gated
DAC gating modes External digital:
 Programmable, active high or active low, level or edge
External analog:
Refer to Analog trigger on page 41
DAC trigger sources External digital: D/A START TRIGGER
External analog: ATRIG input
CH0 IN through CH63 IN
Software triggered
DAC triggering modes External digital:
 Software-configurable for rising or falling edge.
External analog:
Refer to Analog trigger on page 41
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 1 MS/s max per channel, 2 channels simultaneous
Analog output external reference input (D/A EXTREF)
Table 15. External reference input (D/A EXTREF) specifications
Parameter Specification
Range ±11 V
Overvoltage protection ±25 V powered on, ±15V powered off
Input impedance 10 kΩ
Bandwidth (–3 dB) 1 MHz
Gain Error – EXTREF mode 0 to 0.5%; not adjustable.