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OME-A-822PGH GAIN CONTROL CODE TABLE
BI/UN Settling Time GAIN Input Range
BI
23 us
BI
28 us
BI
140 us
BI
1300 us
UNI
23 us
UNI
28 us
UNI
140 us
UNI
1300 us
BI
23 us
BI
28 us
BI
140 us
BI
1300 us
BI=Bipolar, UNI=Unipolar, X=don't care, N/A=not available
2.4.7 A/D Multiplex Control Register
(WRITE) Base+A : A/D Multilexer Control Register Format
Bit 7
Bit 6
X
X
A/D input channel selection data = 4 bits : D3..D0, D3=MSB, D0=LSB, X=don't care
Single-ended mode : D3..D0
Differential mode : D2..D0, D3=don't care
The OME-A-822PGL/PGH provides 16 single-ended or 8 differential analog input signals.
In single-ended mode, D3..D0 selects the active channel. In differential mode, D2..D0 selects
the active channel and (D3 has no affect).
NOTE: The settling time of the multiplexer depends on the resistance.of the input
sources.
source resistance = about 0.1K ohm
source resistance = about 1K ohm
source resistance = about 10K ohm
source resistance = about 100K ohm
1
+/- 5V
10
+/- 0.5V
100
+/- 0.05V
1000
+/- 0.005V
1
0 to 10V
10
0 to 1V
100
0 to 0.1V
1000
0 to 0.01V
0.5
+/- 10V
5
+/- 1V
50
+/- 0.1V
500
+/- 0.01V
Bit 5
Bit 4
X
X
OME-A-822PGL/PGH Hardware Manual ---- 21
GAIN3 GAIN2 GAIN1 GAIN0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
Bit 3
Bit 2
D3
D2
settling time = about 3 us.
settling time = about 5 us.
settling time = about 10 us.
settling time = about 100 us.
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
Bit 1
Bit 0
D1
D0
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