Operation Theorem
•
37
A/D Data (Hex) Decimal Value V (Volts, -1V~1V) V (Volts, -5V~5V)
7FC 0
+32704
+1.0000
+5.0000
400 0
+16384
+0.5002
+2.5010
0040
+64
+0.0005
+0.0025
000 0
0
0.0000
0.0000
FFC 0
-64
-0.0005
-0.0025
C00 0
-16384
-0.5002
-2.5010
804 0
-32704
-1.0000
-5.0000
800 0
-32768
-1.0020
-5.0098
The formula between the A/D data and the analog value is
Voltage = AD_data x (1/K) x (Gain)
where
Gain
and
K
are constants.
For analog input range
-1V~1V,
Gain
=1; for analog input range
-
5V~5V,
Gain
=5.
For PCI-9812, K=2047x16=32752;
for PCI-9810, K=511x64=32704.
Summary of Contents for NuDAQ PCI-9812/10
Page 1: ...NuDAQ PCI 9812 10 20MHz Simultaneous 4 CH Analog Input Card Users Guide ...
Page 4: ......
Page 57: ...C C Library 49 ...
Page 61: ...Calibration 53 ...
Page 69: ...Software Utility 61 ...