The DS18B20 is a digital thermometer that can measure Celsius temperatures from -55°C to +125°C with an accuracy of ±0.5°C between -10°C and +85°C. It also has an alarm function that can be set by the user with non volatile upper and lower limits. The DS18B20 uses a 1-Wire bus, which only needs one data line (and ground) to communicate with a microprocessor.
The DS18B20 can also get power from the data line (“parasite power”), so it does not need an external power supply.
Features
- Unique 1-wire interface requires only one port pin for communication.
- Packaging: TO-92
- Voltage: 3V to 5.5V
Specification
SPECIFICATION | VALUE |
---|---|
Package | TO-92 3 |
Accuracy | ±2°C(Max) |
Interface Type | 1-Wire |
Output Type | Digital |
Family | DS18B20 |
Function | Temp Sensor |
Resolution | 12Bit(Max) |
Minimum Input Voltage | 3V |
Input Voltage | 3.3V, 5V |
Maximum Input Voltage | 5.5V |
Minimum Operating Temperature | -55°C |
Maximum Operating Temperature | 125°C |
Mounting | Through Hole |
Pins | 3 |
Width | 3.94mm(Max) |
Height | 4.95mm(Max) |
Product Length | 4.95mm(Max) |
Product Type | Temp Sensor |
Package Includes
- 1 x DS18B20 Programmable Resolution
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