The thermal resistance (θJA) of the ADT7462ACPZ-5RL7 is approximately 30°C/W, which is not explicitly stated in the datasheet.
To configure the ADT7462ACPZ-5RL7 for remote temperature sensing, connect the remote diode (e.g., a diode-connected transistor) to the RTEMP pin, and ensure the diode is biased correctly. Refer to the application note AN-1046 for detailed guidance.
The maximum cable length for remote temperature sensing with the ADT7462ACPZ-5RL7 depends on the cable characteristics and noise environment. As a general guideline, keep the cable length below 10 meters to ensure reliable operation.
While the ADT7462ACPZ-5RL7 can operate up to 150°C, it's not recommended for high-temperature applications above 150°C due to potential accuracy and reliability issues. Consider using a more suitable device, such as the ADT7490, for high-temperature applications.
Calibration is not typically required for the ADT7462ACPZ-5RL7, as it's a factory-calibrated device. However, if you need to optimize accuracy, you can perform a one-point calibration by adjusting the offset voltage (VOS) using an external resistor network, as described in the datasheet.
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