©
National Instruments Corp.
21
NI 9237E Operating Instructions and Specifications
Specifications
The following specifications are typical for the range –40 to 85 °C
internal to any enclosures unless otherwise noted.
Input Characteristics
Number of channels.......................... 4 analog input channels
Bridge completion
Half and Full............................... Internal
Quarter........................................ External
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
