Appendix A Specifications
DAQCard-700 User Manual A-2 ni.com
Transfer Characteristics
Relative accuracy....................................±1 LSB typ, ±1.5 LSB max
DNL ........................................................±0.5 LSB typ, ±1 LSB max
No missing codes....................................12 bits, guaranteed
Offset error
After software calibration................±1 LSB
Before software calibration .............±2 LSB typ, ±9 LSB max
Gain error (relative to calibration reference)
After software calibration................±0.036% max
Before software calibration .............±0.07% of reading typ,
±0.4% max
Amplifier Characteristics
Input impedance .....................................1 GΩ in parallel with 40 pF
CMRR (all input ranges) ........................–72 dB, DC to 60 Hz
Dynamic Characteristics
Settling time ±0.024% accuracy
(±1 LSB) for full-scale step ....................25 µs max at ±10 V, ±5 V
10 µsat±2.5V(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/°Cmax
Digital I/O
Number of channels................................8 input and 8 output
Compatibility ..........................................TTL-compatible
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