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MAX31825 - Temperature Sensor

General Description

The MAX31825 temperature sensor provides 8-bit to 12-bit Celsius temperature measurements with better than ±1°C accuracy from 0°C to +70°C and ±1.75°C from -45°C to +145°C.

Key Features

  • 1-Wire Interface Requires Only One Port Pin for Communication.
  • Unique 64-bit Serial Code Stored in an On-Board ROM.
  • External Resistor Selects Address for Location Identification.
  • Can Be Powered From Data Line.
  • Power Supply Range is 1.6V to 3.6V (External Power), 2.3V to 3.6V (Parasite Power).
  • Measures Temperatures from -45°C to +145°C.
  • Better Than ±1°C Accuracy from 0°C to +70°C.
  • Better Than ±1.75°C Accuracy from -45°C to +145°C.
  • Alarm Output for Det.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Click here for production status of specific part numbers. MAX31825 1-Wire® Temperature Sensor With ±1ºC Accuracy General Description The MAX31825 temperature sensor provides 8-bit to 12-bit Celsius temperature measurements with better than ±1°C accuracy from 0°C to +70°C and ±1.75°C from -45°C to +145°C. The sensor communicates over a 1-Wire® bus that, by definition, requires only one data line (and ground) for communication with a microcontroller. In addition, the sensor can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each sensor has a unique 64-bit serial code, which allows multiple MAX31825 ICs to reside on the same 1-Wire bus.