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Dual Temp Diode Monitor/SMBus Interface
ON Semiconductor Corp
Description
The ADT7483A is a three-channel digital thermometer and under/over temperature alarm, intended for use in PCs and thermal management systems. It can measure the temperature in two remote locations, for example, the remote thermal diode in a CPU or GPU, or a discrete diode connected transistor. It can also measure its own ambient temperature.
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 Overtemperature Fail-safe overbar: THERM Outputs 240 µA Operating Current, 5 µA Standby Current
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