Appendix A
Specifications for SCXI-1120
A-2
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Output resistance
Multiplexed-output mode ................100
Ω
Parallel-output mode .......................330
Ω
Filtering (jumper selectable)...................4 Hz (–10 dB) or 10 kHz
(–3 dB), 3-pole RC
Output selection time
(with 5 V step, all gains)
0.012% accuracy
1
............................5.2 µs typ
7 µs max
0.012% accuracy
2
............................3 µs
0.006% accuracy
3
............................10 µs
0.0015% accuracy
3
..........................20 µs
Rise time
4 Hz .................................................0.12 s
10 kHz .............................................70 µs
Slew rate .................................................0.15 V/µs
Noise (400 kHz bandwidth)
1
Input (gain = 1,000)
4 Hz filter .................................100 nV
rms
10 kHz filter .............................4 µV
rms
Output (gain = 1)
4 Hz ..........................................150 µV
rms
10 kHz ......................................1 mV
rms
Operating common-mode voltage ..........50 or 60 Hz
Channel to channel or
channel to earth................................250 V
rms
Common-mode rejection ratio, 50 or 60 Hz
1 k
Ω
in input leads ..........................160 dB min at 4 Hz bandwidth
NMR (50 or 60 Hz) .........................60 dB at 4 Hz bandwidth
1
Includes the combined effects of the SCXI-1120 and the AT-MIO-16F-5
2
Includes the combined effects of the SCXI-1120 and the AT-MIO-16E-2 with 1 m or 2 m cable
3
Includes the combined effects of the SCXI-1120 and the AT-MIO-16X with 1m or 2 m cable
