MCP3421DM-WS Microchip Technology, MCP3421DM-WS Datasheet - Page 15

• Manufacturer Part Number: MCP3421DM-WS
• Description: Data Conversion IC Development Tools WT SCALE DEMO BRD 18 I/O 10-BIT ADC
• Manufacturer: Microchip Technology
• Type: ADCr

Specifications of MCP3421DM-WS

• Product: Demonstration Boards
• Tool Is For Evaluation Of: MCP3421
• Interface Type: I2C
• Operating Supply Voltage: 5 V

3.1
3.2
FIGURE 3-1:
 2010 Microchip Technology Inc.
SOFTWARE INSTALLATION
SOFTWARE OVERVIEW
Chapter 3. Weight Scale PC Software Tool
The Weight Scale PC software is an executable file that does not require installation.
But, to enable running the software, the user must first install two additional programs,
in the following order:
These programs can be downloaded from www.ni.com.
The MCP3421 Weight Scale Demo Board includes a PC graphical user interface (GUI),
that can be used to evaluate the weight scale accuracy and weight scale calibration.
This board is communicating with the software via USB port.
The following figure shows a sample of the software’s GUI in Measurement mode:
MCP3421 Weight Scale Demo Board Software – Measurement Mode.
The user can control the size of the X axis by writing the desired figure in buffer length.
Several series of statistical analysis are performed on this buffer, the most important
being displayed on the screen, under the Measurement Standard Deviation. This
deviation is measured in grams and represents the RMS noise value of the weight
scale. The actual accuracy of the weight scale can be defined in many ways, but most
commonly it is 10 times the standard deviation.
- NI LabVIEW Run-Time Engine
- NI-VISA Run-Time Engine
DEMO BOARD USER’S GUIDE
MCP3421 WEIGHT SCALE
DS51918A-page 15