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RF430FRL152H: ADC

wallace s
Prodigy 100 points
Part Number: RF430FRL152H


Hi,everyone

I am using a RF430FRL152H to connect with a Full Bridge Strain Gauge.As a begginer of this filed ，I want ask some question.

Here are the question:

1、I want to use the VDD2X to source the Full Bridge Strain Gauge ,should I ground the Full Bridge Strain Gauge to SVSS ? and why ?

2、I want to use the ADC connect one of the Full Bridge Strain Gauge output, what should  the another output connect with?

3、based on the two  point  ,should I set a reference resistance？

the following picture is Full Bridge Strain Gauge

thanks

Wallace

  • 0
    TI__Mastermind 18265 points
    Hello Wallace,

    regarding the ADC input connection to SVSS you will find more information in the Technical Reference Manual chapter 10.2.8 (page 202):

    www.ti.com/.../slau506.pdf

    In case of the sensor connection, I am sorry but I can not help with the connection of a specific sensor type.
    I found the following document and it contains maybe some useful information for you:

    www.ti.com/.../slyp163.pdf

    Best regards,
    Helfried
  • 0 in reply to Helfried Vollbrecht
    Prodigy 100 points

    Hello Helfried

    I am so happy to receive your reply.I have made some  progress by communicating with my teacher before you replied me.However，the document you provided about how bridge measurement systems helps me a lot .The document which lists many useful examples on bridge measurement systems helps me understand the system better and design the system easier.

    Thanks for your reply again.