National-instruments 24-Bit Half/Full-Bridge Analog Input Module NI 923 Uživatelský manuál stáhnout pdf (Strana 22)

NI 9237 Operating Instructions and Specifications 22 ni.com

Type of ADC..................................... Delta-Sigma (with analog

prefiltering)

Sampling mode ................................. Simultaneous

Internal master timebase (f

)

Frequency ................................... 12.8 MHz

Accuracy..................................... ±100 ppm max

Data rate range (f

) using internal master timebase

Minimum.................................... 1.613 kS/s

Maximum ................................... 50 kS/s

Data rate range (f

) using external master timebase

Minimum.................................... 390.625 S/s

Maximum ................................... 51.3 kS/s

Data rates

)................................... , n = 1, 2, …, 31

Typical input range ........................... ±25 mV/V

Scaling coefficient ............................ 2.9802 nV/V per LSB

The data rate must remain within the appropriate data rate range. Refer to the

Understanding NI 9237 Data Rates section for more information.

256÷

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National-instruments 24-Bit Half/Full-Bridge Analog Input Module NI 923 Uživatelský manuál Strana 22