Description
The DS18B20 is a digital temperature sensor that provides precise temperature measurements in Celsius. It communicates using a 1-Wire® interface, which requires only a single data line (plus ground) for communication with a microcontroller. The sensor can operate either with an external supply or parasite power derived directly from the data line. It also has programmable resolution and user-programmable alarm limits stored in non-volatile memory.
FEATURES
- Temperature Range: −55 °C to +125 °C
- Accuracy: ±0.5 °C (−10 °C to +85 °C)
- Resolution: 9 to 12 bits
- Interface: 1-Wire digital
- Supply Voltage: 3.0 V to 5.5 V
- Conversion Time: ~93.75 ms (9-bit) up to 750 ms
- Power Mode: Normal or parasite powering
- Alarm Function: Upper and lower threshold settings
- Mounting Style: Through Hole
SPECIFICATION
- Dimension: 4.5 × 4.6 × 3.5 mm
- Additional information
- Gross weight: 0.75 g
- Manufacturer part number: DS18B20





