Daq-/daqe-2213/2214 ai data format, Table 4-1: bipolar analog input range and, Output digital code for daq/daqe/pxi-2205/2206 30 – ADLINK DAQe-2214 User Manual
Page 42: Table 4-2: unipolar analog input range and
30
Operation Theory
DAQ-/DAQe-2213/2214 AI Data Format
The data format of the acquired 16-bit A/D data is two's comple-
ment coding. Table 4-1 and Table 4-2 illustrate the valid input
ranges and the ideal transfer characteristics.
Description
Bipolar Analog Input Range
Digital
code
Full-scale Range
±10 V
±5 V
±2.5 V
±1.25 V
—
Least significant bit
305.2 µV
152.6 µV
76.3 µV
38.15 µV
—
FSR-1LSB
9.999695 V 4.999847 V 2.499924 V 1.249962 V
7FFF
Midscale +1LSB
305.2 µV
152.6 µV
76.3 µV
38.15 µV
0001
Midscale
0 V
0 V
0 V
0 V
0000
Midscale -1LSB
-305.2 µV
-152.6 µV
-76.3 µV
-38.15 µV
FFFF
-FSR
-10 V
-5 V
-2.5 V
-1.25 V
8000
Table 4-1: Bipolar Analog Input Range and Output Digital Code for DAQ/DAQe/
PXI-2205/2206
Description
Unipolar Analog Input Range
Digital
code
Full-scale Range
0V to 10 V
0 to +5 V
0 to +2.5 V 0 to +1.25 V
—
Least significant bit
152.6 µV
76.3 µV
38.15 µV
19.07 µV
—
FSR-1LSB
9.999847 V 4.999924 V 2.499962 V 1.249981 V
7FFF
Midscale +1LSB
5.000153 V 2.500076 V 1.250038 V 0.625019 V
0001
Midscale
5 V
2.5 V
1.25 V
0.625 V
0000
Midscale -1LSB
4.999847 V 2.499924 V 1.249962 V 0.624981 V
FFFF
Table 4-2: Unipolar Analog Input Range and Output Digital Code for DAQ/DAQe/
PXI-2205/2206