DS18B20 Temperature Sensor

The DS18B20 Digital Thermometer provides 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/microcontroller. 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.

Specifications:

• Calibrated directly in ° Celsius (Centigrade)
• Unique 1-wire interface requires only one port pin for communication
• Each device has a unique 64-bit serial code stored in an onboard ROM
• Multi-drop capability simplifies distributed temperature sensing applications
• Requires no external components
• Can be powered from the data line. The power supply range is 3.0V to 5.5V
• Measures temperatures from –55°C to +125°C (–67°F to +257°F)
• ±0.5°C accuracy from –10°C to +85°C
• 12-bit thermometer resolution
• Converts temperature in 750 ms (max.)

Applications:

• Thermostatic controls
• Industrial systems
• Consumer products
• Thermometers
• Thermally sensitive system

Package includes:

1 x DS18B20Temperature Sensor