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MAX31732 - Four-Channel Remote Temperature Sensor

General Description

The MAX31732 is a multi-channel temperature sensor that monitors its own temperature and the temperatures of up to four external diode-connected transistors.

Key Features

  • One Local and Four Remote Temperature-Sensing Channels.
  • ±1°C Remote Temperature-Measurement Accuracy (-40°C to +125°C).
  • -64°C to +150°C Remote TemperatureMeasurement Range.
  • Up to 300Ω Resistance Cancellation for Remote Channels.
  • Compensation for Low Beta Transistors.
  • 12 Bit, 0.0625°C Resolution.
  • Two Programmable Alarm Temperature Thresholds.
  • Eight Selectable Target Addresses.
  • Flexible I2C/SMBus Interfaces to a Vari.

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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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Four-Channel Remote Temperature Sensor MAX31732 General Description The MAX31732 is a multi-channel temperature sensor that monitors its own temperature and the temperatures of up to four external diode-connected transistors. A resistance cancellation feature compensates for up to 300Ω of series resistance between the external thermal diode and the MAX31732, while beta compensation corrects for temperature-measurement errors due to low-beta sensing transistors. The sensor also allows ideality factors between 0.9844 and 1.311. The MAX31732 offers two open-drain, active-low alarm outputs, ALARM1 and ALARM2.