ds18b20

Thermometer


Features
· ±0.5°C accuracy from -10°C to +85°C.
· Measures temperatures from -55°C to +125°C (-67°F to +257°F).
· 9- to 12-bit user-configurable resolution.
· 1-Wire interface requires only one port pin for communication.
· Has a 64-bit unique and unchangeable electronic serial number.
· Multi-drop capability for simplified distributed temperature sensing.
· Alarm function with user-defined nonvolatile alarm settings.
· Converts temperature to 12-bit digital word in 750ms (max.).
· No external components required to sense temperature.
· 3.0V to 5.5V supply range.
· 3-pin TO-92 (DS18B20) package.

Applications
· Agricultural Systems
· Thermostatic controls
· Industrial systems
· Consumer products
· Thermometers
· Any thermally sensitive system.


More information here