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Maxim Dallas DS18B20+ Digital Temperature Sensor TO92 -55' to +125'

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The DS18B20 is a very small thermometer which can be easily hooked into the Arduino MCU through any digital input.


The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements.

It has an alarm function with non-volatile user programmable upper and lower trigger points.

The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor.

Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. You can use one microprocessor to control many DS18B20s distributed over a large area.

  • IC Output Type: Digital
  • Sensing Accuracy Range: ± 0.5°C
  • Sensing Temperature Min: -55°C
  • Sensing Temperature Max: +125°C
  • Supply Voltage Min: 3V
  • Supply Voltage Max: 5.5V
  • Sensor Case Style: TO-92
  • No. of Pins: 3
  • Operating Temperature Range: -55°C to +125°C
  • Output Current: 4mA
  • Resolution (Bits): 12bit
  • Supply Current: 1mA

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