Note 8: The conversion-time specification is provided to indicate how often the temperature data is updated. The LM75 can be accessed at any time and reading

the Temperature Register will yield result from the last temperature conversion. When the LM75 is accessed, the conversion that is in process will be interrupted and

it will be restarted after the end of the communication. Accessing the LM75 continuously without waiting at least one conversion time between communications will

prevent the device from updating the Temperature Register with a new temperature conversion result. Consequently, the LM75 should not be accessed continuously

with a wait time of less than 300 ms.

Note 9: For best accuracy, minimize output loading. Higher sink currents can affect sensor accuracy with internal heating. This can cause an error of 0.64˚C at full

rated sink current and saturation voltage based on junction-to-ambient thermal resistance.

Note 10: O.S. Delay is user programmable up to 6 “over limit” conversions before O.S. is set to minimize false tripping in noisy environments.

Note 11: Default values set at power up.

High).

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FIGURE 2. Temperature-to-Digital Transfer Function (Non-linear scale for clarity)

01265806

FIGURE 3. Printed Circuit Board Used for Thermal Resistance Specifications

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