National Instruments NI 9234 User Manual

Page 25

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© National Instruments Corp.

25

NI 9234 Operating Instructions and Specifications

Alias-free bandwidth ........................ 0.45 · f

s

Oversample rate ................................ 64 · f

s

Crosstalk (1 kHz).............................. –110 dB

CMRR (f

in

≤ 1 kHz)

Minimum.................................... 40 dB
Typical ........................................ 47 dB

SFDR (f

in

= 1 kHz, –60 dBFS) ......... 120 dB

Idle channel noise and noise density

Input impedance

Differential ................................. 305 k

Ω

AI– (shield) to chassis ground.... 50

Ω

Idle Channel

51.2 kS/s

25.6 kS/s

2.048 kS/s

Noise

97 dBFS

99 dBFS

103 dBFS

50

μV

rms

40

μV

rms

25

μV

rms

Noise density

310 nV/

√Hz

350 nV/

√Hz

780 nV/

√Hz

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