Temperature Sensor

DS18B20
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MFR Part No: DS18B20+
Temperature Sensor, IC, Digital, -55 °C to 125 °C, TO-92
4.56
(w/include VAT): 0
On Stock
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The DS18B20 Digital Thermometer provides 9 to 12–bit centigrade temperature measurements and has an alarm function with nonvolatile 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. It has an operating temperature range of –55°C to +125°C and is accurate to ±0.5°C over the range of –10°C to +85°C.
In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply.
Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1–wire bus; thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area.
Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment or machinery, and process monitoring and control systems.

 

Features:

  • Unique '1-Wire' interface requires only one port pin for communication
  • Requires no external components
  • Can be powered from data line
  • Zero standby power required
  • Measures temperatures from -55°C to +125°C in 0.5°C increments. Fahrenheit equivalent is -67°F to +257°F in 0.9°F increments
  • Temperature is read as programmable 9 to 12-bit digital value
  • Converts temperature to digital word in 200 ms (typical)
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