©
National Instruments Corp.
13
NI 9229E/9239E
Specifications
The following specifications are typical for the range –40 to 85 °C
internal to any enclosures 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 9229E and the NI 9239E
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
