Minimum Analog Input Voltage for NI-USB-6363 X-Series Multifunction DAQ

[NJData]

Hello 

We are planning work with a load cell and we are trying to determine the minimum analog input voltage that can be measured by our NI-USB-6363 X-Series Multifunction DAQ.

We expect our load cell to output between 1.40 and 7.00 mV. 

From Table 4-1 in the manual (shown below) we understand that we would set our range to -100 mV to 100 mV. The resolution states 3.2 micro-Volts. Is that the minimum Analog Input Voltage?

Please provide guidance. Thank you.  

[ZYOng]

From Analog-to-Digital Converter (ADC) Resolution section of Specifications Explained: NI Multifunction I/O (MIO) DAQ

The NI PXIe-6363 is a 16-bit device, which means that lowest amplitude change that can be detected on the ±5 V range is 0.152 mV. On the ± 0.1 V range, this value is 3.05 µV.

Resolution

= Input range divided by 2^bitness

= 100-(-100)/2^16

= 3.05 uV