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Original question:

PGA309: PGA309 + RTD

PGA309: usage with RTD sensor

Luca Maggiani
Prodigy 10 points
Part Number: PGA309
Other Parts Discussed in Thread: XTR108

Hello,

i will reopen the topic to check if any documentation has been released for RTD usage. 

I would like to use PGA309 as RTD 4-wire excitation and signal conditioner. 

Would it be possible? 

Thank you

Luca

  • 0
    TI__Guru 55466 points

    Hi Luca,

    The PGA309 is a bridge sensor conditioner solution, (strain, load, weight scales).  It performs sensor linearization and bridge calibration.  When performing the bridge calibration, it can sense the temperature of the bridge sensor using an external bridge resistor or even an external RTD.  However, is not specifically designed as an RTD measurement/conditioner solution.  We offer the XTR108 as a two-wire transmitter/conditioner specifically designed for RTD applications.

    Thank you and Best Regards,

    Luis