© National Instruments Corp. 25 NI 9234 Operating Instructions and Specifications
Alias-free bandwidth........................ 0.45 · fs
Oversample rate................................ 64 · fs
Crosstalk (1kHz) ..............................–110 dB
CMRR (fin ≤ 1 kHz)
Minimum.................................... 40 dB
Typical........................................ 47 dB
SFDR (fin = 1 kHz, –60 dBFS)......... 120 dB
Idle channel noise and noise density
Input impedance
Differential................................. 305 kΩ
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 d BFS 103 dBFS
50 μVrms 40 μVrms 25 μVrms
Noise density 310 nV/√Hz 350 nV/√Hz 780 nV/√Hz