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ADS1115: Is it possible that to avoid not losing configuration on power loss?

Part Number: ADS1115

This and other I2C chip I have test previously both reset to defaults each time they lose power.

I would like to use it standalone so I need to do not lose configuration values never (unless if it is configured again), is it possible?

Thanks

  • Emilio,

    I'm sorry, but the register configuration is volatile memory. If the ADS1115 loses power, there is no way for it to retain the configuration that was written to it. It will return to the default configuration settings for the device and needs to be configured again.

    Joseph Wu

  • Thanks Joseph, I will forget using ADS1115 for this case, the application I'm looking is a simple way to protect a 12 V battery from an over discharge, do you know something that can recommend me? something like: battery disconnect when voltage drops below 11 V.
    Thanks, Emilio
  • Emilio,


    I'm not aware of any device that would retain its configuration register values after programming. However, I would still consider using the ADS1115 in single-shot conversion mode. In this mode, you program and run the conversion for each conversion. If you are making multiple conversions over multiple channels, I think this is the preferred method of using the device. In this mode, you are always setting up the device in the correct mode. This would be a rather simple implementation with the 32-bit data transmission mode.

    I don't know of any devices that have a non-volatile memory used to retain the configuration register. There may be some devices with EEPROM, but if there's a power cycle event, you would still need to have stored the configuration register separately and reload it into the device.


    Joseph Wu