Is there a way to convert the temperature reading from the LM86 back to a voltage at the diode? Also can the LM86 be biased at 40uA
Thanks,
Eric
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Is there a way to convert the temperature reading from the LM86 back to a voltage at the diode? Also can the LM86 be biased at 40uA
Thanks,
Eric
Hi Eric,
Remote junction sensors measure delta VBE between two or more bias currents. It cannot be converted to absolute VBE (forward voltage.) Also, I assume you're asking about using a 40uA bias current for the remote junction and not the current consumption of LM86 itself. I'm not aware of any remote junction sensor in the market that has configurable bias currents.
Perhaps you would be interested in a current reference https://www.ti.com/power-management/voltage-reference/current-reference/products.html or signal conditioner https://www.ti.com/sensors/specialty-sensors/signal-conditioners/products.html/ that might be re-purposed for your task.
Please note you'll need to create a new post referencing these products to be directed to the right expert.
thanks,
ren
No, the delta VBE cannot be calculated from the temperature reading. The devices are not intended to be used this way.
thanks,
ren