Appendix A
Specifications
©
National Instruments Corporation
A-7
Gain error (relative to internal reference)
After calibration .............................. ±30.5 ppm of output max
Before calibration ........................... ±9,000 ppm of output max
Gain error
(relative to external reference) ............... +0% to +0.5% of output
max, not adjustable
Voltage Output
Ranges .................................................... ±10 V, 0 to 10 V, ±EXTREF,
0 to EXTREF
(software-selectable)
Output coupling...................................... DC
Output impedance .................................. 0.1
Ω
max
Current drive .......................................... ±5 mA max
Protection ............................................... Short-circuit to ground
Power-on state........................................ 0 V (±20 mV)
External reference input
Range .............................................. ±11 V
Overvoltage protection ................... ±25 V powered on,
±15 V powered off
Input impedance.............................. 10 k
Ω
Bandwidth (–3 dB).......................... 3 kHz
Slew rate ......................................... 0.3 V/
µ
s
Dynamic Characteristics
Settling time for full-scale step .............. 3.5
µ
s to ±1.0 LSB accuracy
Settling time for half-scale step ............. 3.0
µ
s to ±1.0 LSB accuracy
Slew rate................................................. 15 V/
µ
s
Noise ...................................................... 60
µ
V
rms
, DC to 1 MHz