One-Wire Ambient Temperature Sensor - MAX31820

Sparkfun ElectronicsSKU: RB-Spa-1375
Manufacturer #: SEN-14049

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  • 9-bit to 12-bit Celsius temperature measurements
  • Communicates over a one-wire bus
  • Can derive power directly from the data line
  • Requires no external components

The One-Wire Ambient Temperature Sensor - MAX31820 provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy.

  • 3.0V to 3.7V power-supply range
  • Measures temperatures from -55°C to +125°C (-67°F to +257°F)
  • ±0.5°C accuracy from +10°C to +45°C
  • Thermometer resolution is user-selectable from 9 bits to 12 bits
  • Converts temperature to 12-bit digital word in 750ms (Max)
  • User-definable nonvolatile (NV) alarm settings
  • Alarm search command identifies and addresses devices whose temperature is outside programmed limits (Temperature Alarm Condition)

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