National Instruments 5441 用户手册
© National Instruments Corporation
11
NI 5441 Specifications
Spectral Characteristics (Continued)
Average Noise
Density
Density
Path
Amplitude
Range
Average
Noise Density
Average Noise
Density at small
amplitudes is
limited by a
–148 dBm/Hz
noise floor.
Density at small
amplitudes is
limited by a
–148 dBm/Hz
noise floor.
V
pk-pk
dBm
dBm/Hz
dBFS/
Hz
Direct
1
4.0
18
–142
–146.0
Low Gain
0.06
–20.4
9
–148
–127.6
Low Gain
0.1
–16.0
9
–148
–132.0
Low Gain
0.4
–4.0
13
–145
–141.0
Low Gain
1
4.0
18
–142
–146.0
Low Gain
2
10.0
35
–136
–146.0
High Gain
4
16.0
71
–130
–146.0
High Gain
12
25.6
213
–120
–145.6
Specification
Value
Comments
nV
Hz
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