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LM335A: Asking about the operation stability of the sensor in the AC magnetic field

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Prodigy 10 points
Part Number: LM335A


Tool/software:

Hi, TI sensor forum.

Currently, I'm looking for the temperature sensor that has a 1ch analog output, and robust in the Alternating magnetic field.
The field strength is roughly maximum +-150mT(pp).

Unfortunately, There is not much sensor has a spec about the magnetic field. And I'm worrying because these type of active sensors sometimes have a trouble in the various AC field.

So If the sensor is feasible, Can I get any kind of information about the operation? Or if not, Can I get any other sensors that is feasible?

Looking forward your answer.

Park Hayoun.

  • 0
    TI__Expert 7180 points

    Hi Park,

    We have characterized only a few of our devices in EMI bench setups for high frequency EMI performance (radiated and conducted inmunity). Ultimately the performance will depend on the frequency on the signal and this will also determine whether an RC filter needs to be implemented--for noise filtering at the output, induced by an EMI field. If you would like more information on this topic, let me know.

    That being said, we have not characterized our devices under alternating magnetic fields and I would not be able to give you guidance on this without performing some kind of characterization. Initially, I would not think this would be an issue considering the internal biasing of our temperature sensing element but would need to be tested.

    Best regards,

    Simon Rojas