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LM35: Dual supply

ttd
Mastermind 8610 points
Part Number: LM35

Dear Technical Support Team,

Is it possible to use LM35 with dual supply below?

±12 V is generated by 24V.

Datasheet shows dual supply is possible,but supply voltage (+VS)  is from 4 to 30 V.

So I'd like to confirm below.

　　　　　　 　　　　　　　                               ⇒  +12V  ⇒ V+ of LM35

24V　⇒  positive and negative power supply IC

　　　　　　　　　　　　　                                ⇒ -12V    ⇒  V-(GND) of LM35

Best Regards,

ttd

  • 0
    TI__Expert 7855 points
    Hi ttd,

    Yes you will be fine. In your case, the -12V will be the reference point relative to LM35. So LM35 will "see" a 24V supply.
    But be careful when connecting the output to the ADC if the ADC negative reference isn't at -12V also. The LM35 will output a voltage relative
    to the -12V reference.

    -Kelvin