Omega Vehicle Security DAQ-16 - Manual (Page 13)

+32,767 +32,767 +65,535 +65,535 +Vmax
+16,384 0 +49,152 +32,768 +Vmax/2
0 -32,768 +32,768 0 0
-16,384 n/a +16,384 n/a -Vmax/2
-32,768 n/a 0 n/a -Vmax
bipolar unipolar bipolar unipolar
2’s Complement 2’s Complement Binary Binary Voltage
Table 2-2. A/D Conversion Format Examples
In order to calculate the actual input voltage from the digital "code" provided by the DAQ-16,
the user must know the configuration used to acquire the data. Given this information, the
input voltage can be calculated using the equations below:
Unipolar, binary
input = * Vmax
CODE
65, 536
Bipolar, binary
input = - * 2 * Vmax
CODE
65, 536
1
2
Unipolar, 2’s complement
input = + * Vmax
CODE
65, 536
1
2
Bipolar, 2’s complement
input = * 2 * Vmax
CODE
65, 536
DAQ-16 Users Manual 13