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Power Requirements
NI USB-9211/9211A User Guide and Specifications
Max sampling rate (Hz)
Number of
Channels in
Scan List
1
2
3
4
Note: NI-DAQmx Base always applies autozero.
Input bandwidth (–3 dB).........................15 Hz
Noise rejection ........................................85 dB min at 50/60 Hz
Overvoltage protection ...........................±30 V between any input and
Differential input impedance ..................20 MΩ
Input current ...........................................50 nA
Input noise ..............................................1 μV
Gain error................................................0.05% max at 25 °C,
Offset error (with autozeroing)...............15 μV typ, 20 μV max
Gain error from source impedance .........0.05 ppm per Ω source impedance
Offset error from source impedance .......0.05 μV typ, 0.07 μV max per Ω
Current consumption from USB.............500 mA, max
Suspend mode..................................2.5 mA, max
Type of Measurement
Temperature
Temperature
with CJC and
Autozero
4
3
2.4
2
common
0.06% typ (over temperature)
0.1% max (over temperature)
due to input impedance
source impedance due to input
current
20
RAW
with
Analog
Autozero
Input
6
12
4
3
2.4
rms
6
4
3
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