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Registers Format
In PCI-9112, the analog input ranges are software programmable and it is
controlled by the gain value. The gain value and its corresponding input
range is shown as below.
(
Bi
t1
2)
G
3
(
Bi
t1
1)
G
2
(
Bi
t1
0)
G
1
(
Bi
t9
)
G
0
Bipola
r
or
Unipol
ar
Input Range
1 0 0 0 Bipola
r
±10V
0 0 0 0 Bipola
r
±5V
0 0 0 1 Bipola
r
±2.5V
0 0 1 0 Bipola
r
±1.25V
0 0 1 1 Bipola
r
±0.625V
0 1 0 0 Unipol
ar
0V ~ 10V
0 1 0 1 Unipol
ar
0V ~ 5V
0 1 1 0 Unipol
ar
0V ~ 2.5V
0 1 1 1 Unipol
ar
0V ~ 1.25V