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Appendix A Specifications
© National Instruments Corporation A-3 SCXI-1503 User Manual
CMRR characteristics (DC to 60 Hz)
Gain 1..............................................–75 dB min
–90 dB typ
Gain 100..........................................–106 dB min
–110 dB typ
Output range...........................................±10 V
Output impedance .................................. 91 Ω
Dynamic Characteristics
Minimum scan interval (per channel, any gain)
±0.012% accuracy........................... 3 μs
±0.0061% accuracy......................... 10 μs
±0.0015% accuracy......................... 20 μs
Noise characteristics (RTI)
Gain = 1
10 Hz to 1 MHz .............................. 100 μV
rms
Gain = 100
10 Hz to 1 MHz .............................. 1 μV
rms
0.1 to 10 Hz..................................... 0.5 μV
p-p
Filter
Cutoff frequency (–3 dB)....................... 5 Hz
NMR (60 Hz) .........................................–40 dB min
Step response characteristics (gain 1 or 100)
To 0.0015%..................................... 0.6 s
Stability
Recommended warm-up time ................20 min
Offset temperature coefficient
Gain = 1 ..........................................±35 μV/°C max
±10 μV/°C typ
Gain = 100 ...................................... ±1.5 μV/°C max
±0.5 μV/°C typ