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ADT7481 Datasheet - ADI

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Description
MFG CO.
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GENERAL DESCRIPTION
The ADT74811 is a 3-channel digital thermometer and under/ over temperature alarm, intended for use in PCs and thermal management systems. It can measure its own ambient temperature or the temperature of two remote thermal diodes. These thermal diodes can be located in a CPU or GPU, or they can be discrete diode connected transistors. The ambient temperature, or the temperature of the remote thermal diode, can be accurately measured to ±1°C. The temperature measurement range defaults to 0°C to +127°C, compatible with ADM1032, but can be switched to a wider measurement range from −64°C to +191°C.

FEATURES
    1 local and 2 remote temperature sensors
    0.25°C resolution/1°C accuracy on remote channels
    1°C resolution/1°C accuracy on local channel
    Extended, switchable temperature measurement range 0°C to 127°C (default) or –64°C to +191°C
    2-wire SMBus serial interface with SMBus ALERT support
    Programmable over/under temperature limits
    Offset registers for system calibration
    Up to 2 over temperature fail-safe THERM outputs
    Small 10-lead MSOP package
    240 μA operating current, 5 μA standby current

APPLICATIONS
    Desktop and notebook computers
    Industrial controllers
    Smart batteries
    Automotive
    Embedded systems
    Burn-in applications
    Instrumentation

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