National Instruments 5441 Uživatelský manuál stáhnout pdf (Strana 11)

© National Instruments Corporation 11 NI 5441 Specifications

Spectral Characteristics (Continued)

Average Noise

Density

Path

Amplitude

Range

Average

Noise Density

Average Noise

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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1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 43 44

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