ADLINK PCI-9524 - Manual (Page 79)

Operation Theory 63
ADLINK Technology Inc. PCI-9524
Copyright 2008 User’s Manual
Table 4-5: Bipolar analog input ranges and
output digital codes for transducer input channels
Description Analog Input Range
AD Code
(Hex)
Count
(Decimal)
Full-scale Range ±200,000 µV
Least significant
bit (LSB)
0.0238 µV
FSR-1LSB 199,999 µV 7FFFFF 8388607
Midscale +1LSB 0.0238 µV 000001 1
Midscale 0 µV 000000 0
Midscale -1LSB -0.0238 µV FFFFFF -1
-FSR -200,000 µV 800000 -8388608
Table 4-6 presents valid input ranges and ideal transfer character-
istics for general purpose input channels, i.e. analog input chan-
nels 4 to 7.
Table 4-6: Bipolar analog input ranges and
AD codes for general purpose input channels
Description Bipolar Analog Input Range
AD
Code
(Hex)
Count
(Decimal)
Full-scale
Range
±10V ±5V ±2.5V ±1.25V
Least
significant
bit
1.325µV 0.662µV 0.331µV 0.1656µV
FSR-1LSB 9.9999V 4.9999V 2.49999V 1.249999V 733332 7549746
Midscale
+1LSB
1.32µV 0.662µV 0.331µV 0.116µV 000001 1
Midscale 0V 0V 0V 0V 0 0
Midscale
-1LSB
-1.32µV -0.662µV -0.331µV -0.116µV FFFFFF -1
-FSR -10V -5V -2.5V -1.25V 8CCCCD -7549747