National Instruments SCXI Series - Table A-2. System Noise RTI (0.1 Hz to 50 Khz

Appendix A Specifications for SCXI-1120D
SCXI-1120/D User Manual A-6 www.natinst.com
Transfer Characteristics
Nonlinearity............................................0.04% FSR
Offset error RTI......................................±(6 µV ±3 mV/gain)
Gain error................................................0.4% of reading typ
0.6% max
Amplifier Characteristics
Input impedance
Power on..........................................1 MΩ
Power off and overvoltaged.............500 kΩ
Input bias current....................................15 pA
CMRR at DC
1
.........................................≥ 110 dB
CMRR at 50 or 60 Hz
1
...........................≥ 98 dB
Output range ...........................................± 5 V
Output impedance...................................100 Ω in multiplexed mode 330 Ω
in parallel mode
Dynamic Characteristics
Bandwidth (–3 dB) .................................4.5 kHz or 22.5 kHz jumper
selectable
Slew Rate................................................2 V/µs
1
0
Ω
in low lead
Table A-2.
System Noise RTI (0.1 Hz to 50 kHz)
Gain Noise
0.5 10 µV
rms
/√Hz
1,000 0.1 µV
rms
/√Hz