Programmable Resolution Temperature Sensor
Short Description
The DS18B20 is a 9–12bit digital thermometer (–55°C to +125°C, ±0.5°C) with 1-Wire interface, programmable alarms, and parasite power, ideal for HVAC, industrial, and environmental monitoring.
Product Description
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.
Key Features
- Digital Output:Provides 9 to 12-bit centigrade temperature measurements.
- Programmable Alarm Function:Nonvolatile user-configurable upper and lower temperature trigger points.
- 1-Wire Communication Interface:Requires only one data line (+ ground) for communication with a microcontroller.
- Wide Operating Range: –55°C to +125°C.
- High Accuracy:±0.5°C accuracy between –10°C to +85°C.
- Parasite Power Mode:Can be powered directly from the data line, eliminating the need for an external power supply.
Typical Application Scenarios
- HVAC (Heating, Ventilation, and Air Conditioning) environmental controls.
- Temperature monitoring systems in buildings.
- Equipment or machinery temperature sensing.
- Process monitoring and control systems.
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