Network Card User Manual

Appendix A Specifications
© National Instruments Corporation A-5 DAQCard-1200 User Manual
Voltage Output
Ranges.................................................... 0–10 V, ±5 V software selectable
Output coupling...................................... DC
Output impedance .................................. 0.5 Ω typ
Current drive ......................................... 1 mA max per channel
Protection ...............................................80 mA momentary short-circuit
protection to ground
Power on state
0 to 110 ms......................................+2 V to –5 V
>110 ms........................................... 0 V (±mV)
Dynamic Characteristics
Settling time to full-scale step................20 µs to ±1 LSB accuracy
Noise ...................................................... 400 µVrms typ, DC to 1 MHz
Stability
Offset temperature coefficient ............... ±50 µV/°C
Gain temperature coefficient.................. ±30 ppm/°C
Digital I/O
Number of channels ...............................24 I/O (three 8-bit ports; uses the
82C55A PPI)
Compatibility .........................................TTL
Power-on state........................................ All ports high impedance inputs