National Instruments NI 7831R, Руководство пользователя

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Appendix A Specifications
© National Instruments Corporation A-5 NI 7831R User Manual
Digital logic levels
Maximum output current
I
max
(source)..................................... 5.0 mA
I
max
(sink) ........................................ 5.0 mA
Input leakage current
.............................. ±
10
µ
A
Power-on state........................................ Programmable, by line
Data transfers ......................................... Interrupts, programmed I/O
Protection
Input ................................................ –0.5 to 7.0 V
Output ............................................. Short-circuit (up to eight lines
may be shorted at a time)
Reconfigurable FPGA
Number of logic slices ........................... 5,120
Equivalent number of logic cells .... 11,520
Available embedded RAM..................... 81,920 bytes
Timebase ................................................ 40, 80, 120, 160, or 200 MHz
Timebase reference sources
NI PCI-7831R ................................. Onboard clock only
NI PXI-7831R................................. Onboard clock, phase-locked to
PXI 10 MHz clock
Timebase accuracy
Onboard clock
................................. ±
100 ppm, 250 ps jitter
Level Min Max
Input low voltage (V
IL
)
Input high voltage (V
IH
)
0.0 V
2.0 V
0.8 V
5.5 V
Output low voltage (V
OL
),
where I
OUT
= –I
max
(sink)
Output high voltage (V
OH
),
where I
OUT
= I
max
(source)
—
2.4 V
0.4 V
—