ADM1021A Datasheet (ON Semiconductor) - Low Cost Microprocessor System Temperature Monitor Microcomputer

ADM1021A, Low Cost Microprocessor System Temperature Monitor Microcomputer

ADM1021A Low Cost Microprocessor System Temperature Monitor Microcomputer The ADM1021A is a two-channel digital thermometer and under/overtemperature alarm, intended for use in personal computers and other systems requiring thermal monitoring and management.

The device can measure the temperature of a microprocessor using a diode-connected PNP transistor, which can be provided on-chip with the Pentium III or similar processors, or can be a low cost discrete NPN/PNP device, such as the 2N3904/2