National Instruments DAQ Series, Руководство пользователя

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Appendix A Specifications
© National Instruments Corporation A-3 DAQCard-700 User Manual
Maximum votage input rating................ +5.5 V with respect to DGND
–5.5 V with respect to DGND
Digital logic levels
Timing I/O
Number of channels ............................... 3 counter/timers
(1 dedicated to analog input)
Resolution .............................................. 16 bits
Compatibility ......................................... TTL, gate and source pulled
high with 100 k
Ω
resistors
Maximum voltage input rating............... –0.5 to +5.0 V with respect to
DGND
Digital logic levels for MSM82C54
Level Min Max
Input low voltage 0 V 0.8 V
Input high voltage 2 V 5 V
Input low current (V
in
= 0 V) — –50
µ
A
Input high current (V
in
= 5 V) — 1
µ
A
Output low voltage (I
out
= 4 mA) — 0.4 V
Output high voltage (I
out
= 4 mA) 3.7 V —
Level Min Max
Input low voltage — +0.8 V
Input high voltage — +2.2 V
Input load current — ± 10.0 A
Output low voltage — +0.40 V
Output high voltage +3.0 V —
Output source current — ± 2.5 mA
Output sink current — ±2.5 mA