Part Number: PGA309
Other Parts Discussed in Thread: XTR117,
I am working to develop a load cell. My implementation uses a XTR117 current loop output with the PGA309, which very closely follows reference design SLAU526. Each of our devices have a very similar temperature response, so to save time and effort during calibration, I would like to write my own predetermined temperature compensation values to the EEPROM. The goal being to skip the time and effort required to get the load cell to temperature and perfom the full calibration at multiple temperatures. I would like to be able to perform all my future calibrations at room temperature while still maintaining temperature compensation that has been captured in previous temperature calibrations.
Is there an existing process that will allow me to do this? Or would I have to first calibrate the sensor at room temperature, then write the temperature values to the EEPROM seperately? Can the sensor emulation in the PGA309EVM program be used to artificially modify the calibration at temperature to allow us to write the temperature response information at room temperature?
