Table 2-2. A/D Conversion Format Examples - Omega Engineering DAQ-16 User Manual

Voltage
-Vmax
-Vmax/2
0
+Vmax/2
+Vmax
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
Bipolar, binary
Unipolar, 2's complement
Bipolar, 2's complement
DAQ-16 Users Manual
Binary Binary
unipolar bipolar
n/a 0
n/a +16,384
0 +32,768
+32,768 +49,152
+65,535 +65,535

Table 2-2. A/D Conversion Format Examples

CODE
input =
65, 536
CODE
input =
65, 536
CODE
input =
65, 536
CODE
input =
65, 536
2's Complement
unipolar
n/a
n/a
-32,768
0
+32,767
* Vmax
1
- * 2 * Vmax
2
1
+ * Vmax
2
* 2 * Vmax
2's Complement
bipolar
-32,768
-16,384
0
+16,384
+32,767
13