National Instruments 700 - Manual (Page 48)

Specifications Appendix A
DAQCard-700 User Manual A-2 © National Instruments Corporation
Dynamic Characteristics
Settling time
±
0.024% accuracy
(
±
1 LSB) for full-scale step ............................................ 25
µ
s max at
±
10 V,
±
5 V
10
µ
s at
±
2.5 V (RSE)
System noise ........................................................................... 0.5 LSB rms at
±
5 V range
Stability
Recommended warm-up time ................................................ 15 min
Onboard calibration reference
Level ............................................................................... 3.0 V (
±
0.2 mV)
Temperature coefficient .................................................. 60 ppm/
°
C max
Digital I/O
Number of channels ............................................................... 8 input and 8 output
Compatibility ......................................................................... TTL
Digital logic levels .................................................................
Level Min Max
Input low voltage 0 V 0.8 V
Input high voltage 2 V 5 V
Input low current
(Vin = 0 V)
– -50
µ
A
Input high current
(Vin = 5 V) – 1
µ
A
Output low voltage
(Iout = 4 mA) – 0.4 V
Output high voltage
(Iout = 4 mA) 3.7 V –
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
Base clocks available ............................................................. 1 MHz
Base clock accuracy ...............................................................
±
0.01%
Max source frequency ............................................................ 10 MHz
Min source pulse duration ...................................................... 50 ns
Min gate pulse duration.......................................................... 50 ns
Data transfers ......................................................................... Programmed I/O
Bus Interface
Type ....................................................................................... slave