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DS18B20 Digital Temperature Sensor - Maxim Integrated

DS18B20 Digital Temperature Sensor - Maxim Integrated
DS18B20 Digital Temperature Sensor - Maxim Integrated
Brand: Maxim Integrated
Product Code: DS18B20
Availability: In Stock
Price: US $3.71
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The DS18B20 sends temperature readings over a single wire bus using the Dallas 1 wire protocol. A digital sensor has the advantage of noise immunity, consistency, and reduced calibration requirements as compared to an analog sensor like the TMP36 which is easily affected by factors such as wire length. Multiple sensors can share the same bus and each is identified by its own 64 bit ID.

  •  ±0.5°C Accuracy from -10°C to +85°C
  • Useable from -55°C to +125°C
  • 9 to 12 bit resolution
  • 3 - 5v supply voltage

Documentation

DS18B20 pinout and diagram:

Pin Number Name Function
1 GND Ground
2 DATA Data  Input/Output
3 V+ Supply voltage: 3.0 - 5.5 volts

Datasheet

Application Notes: http://www.maximintegrated.com/datasheet/index.mvp/id/2812/t/do

Arduino Documentation on 1-Wire with DS18B20 example code: http://www.arduino.cc/playground/Learning/OneWire

Latest Arduino OneWire library: http://www.pjrc.com/teensy/td_libs_OneWire.html

 

 

Technical
3.3v Compatible Yes
Package TO-92

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