National Instruments AT-MIO-16X - Manual (Page 130)

Chapter 4 Register Map and Descriptions
AT-MIO-16X User Manual 4-34 © National Instruments Corporation
To convert from the ADC FIFO value to the input voltage measured, use
the following formula:
V = ADC reading * 10 V
32,768 Gain
Table 4-8. Two’s Complement Mode A/D Conversion Values
Input Voltage
(Gain = 1)
A/D Conversion Result
Range: –10 to +10 V
Decimal Hex
–10.0 V –32,768 8000
–9.999695 V –32,767 8001
–5.0 V –16,384 C000
–305.2
µ
V –1 FFFF
0.0 V 0 0000
305.2
µ
V 1 0001
5.0 V 16,384 4000
9.999695 V 32,767 7FFF