National Instruments NI 9229 - Manual (Page 18)

NI 9229/9239 18 ni.com
Specifications
The following specifications are typical for the range –40 to 70 °C
unless otherwise noted. All voltages are relative to the AI– signal
on each channel unless otherwise noted. The specifications are the
same for the NI 9229 and the NI 9239 unless otherwise noted.
Input Characteristics
Number of channels.......................... 4 analog input channels
ADC resolution................................. 24 bits
Type of ADC..................................... Delta-Sigma (with analog
prefiltering)
Sampling mode ................................. Simultaneous
Internal master timebase (f
M
)
Frequency ................................... 12.8 MHz
Accuracy..................................... ±100 ppm max
Data rate range (f
s
) using internal master timebase
Minimum.................................... 1.613 kS/s
Maximum ................................... 50 kS/s