Description

Specification Details
Sensor IC DS18B20
Supply voltage 3.0–5.5 V DC
Sensor measurement range −55 to +125 °C
Accuracy ±0.5 °C from −10 to +85 °C
Resolution Programmable 9–12 bits
Temperature increments 0.5 °C at 9-bit; 0.0625 °C at 12-bit
Conversion time Up to 93.75 ms at 9-bit; 750 ms at 12-bit
Communication 1-Wire digital interface
Sensor active current Typically 1 mA; maximum 1.5 mA at 5 V
Multiple-sensor support Multiple sensors can share one data line
Device identification Unique 64-bit serial code
Alarm function Programmable high and low temperature thresholds
Onboard components Pull-up resistor and capacitor; pictured resistor marked 103 (10 kΩ)
Connections +: supply, OUT: data, −: ground
Mounting PCB mounting hole and three-pin header
Applications Temperature logging, thermostats, environmental monitoring and educational projects