The LM86 is an 11-bit digital temperature sensor with a2-wire System Management Bus (SMBus) serial interface.The LM86 accurately measures its own temperature as wellas the temperature of an external device, such as processorthermal diode or diode connected transistor such as the2N3904. The temperature of any ASIC can be accuratelydetermined using the LM86 as long as a dedicated diode(semiconductor junction) is available on the target die. TheLM86 remote sensor accuracy of ±0.75°C is factory trimmedfor the 1.008 typical non-ideality factor of the mobile Pentium™ III thermal diode. The LM86 has an Offsetregister to allow measuring other diodes withoutrequiring continuous software management. Contactto obtain the latest data fornew processors.
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