Appendix A
Specifications
©
National Instruments Corporation
A-7
DAQCard-1200 User Manual
Protection ............................................... –0.5 to 5.5 V powered on,
±0.5 V powered off
Resolution
Counters/timers ............................... 16 bits
Compatibility ......................................... TTL
Base clocks available ............................. 2 MHz
Base clock accuracy ............................... ±50 ppm max
Max source frequency ............................ 8 MHz
Min source pulse duration...................... 125 ns
Min gate pulse duration.......................... 100
µ
s
Data transfers ......................................... Interrupts, programmed I/O
Digital Trigger
Compatibility ......................................... TTL
Response ................................................ Rising edge
Pulse width ............................................. 50 ns min
Bus Interface
Slave
Power Requirement
+5 VDC (±5%)....................................... 150 mA operating,
50 mA power-down mode,
plus any current drawn through
the I/O con5 line
Physical
Dimensions............................................. 8.56 by 5.40 cm (3.37 by 2.13 in.)
PC Card type .......................................... Type II
I/O connector.......................................... 50-pin male
