LG G4F-AD3A - Manual (Page 10)

Chapter 1 Introduction
1-4
2) 0 ~ 10VDC range
When the A/D m o d u le operates with 0 ~ 10VDC range, the 0VDC analog input is
converted to digital 0, and the 10VDC analog input is converted into digital output 4000.
Therefore, the resolution per 1 digital value is 0.0025VDC.
Figure 1.4 A/D conversion characteristic ( 0 ~ 10VDC )
3) –10 ~ 1 0 V D C range
W h e n the A/D m odule operates with –1 0 ~ 10VDC range, the 1 0 V D C a n a log input is
converted to digital 0, and the 1 0V D C a n a log input is converted into digital output 4000.
Therefore, the resolution per 1 digital value is 0.005VDC.
Figure 1.5 A/D conversion characteristic ( -10 ~ 10VDC )
2000
2001
2002
1998
1999
5.000V
5.0025V 4.9975V
5.005V 4.995V
4000
2000
0
5 V 10V
Analog input voltage
D
igital output value
0 V
2000
2001
2002
1998
1999
0.000V
0.005V -0.005V
0.010V
-0.010V
4000
2000
0
0 V 10V
Analog input voltage
D
igital output value
-10V