Key Features:
- Simple I2C control
- Up to 8 on a single I2C bus with adjustable address pins
- 0.25°C typical precision over -40°C to 125°C range (0.5°C guaranteed max from -20°C to 100°C)
- Work great with any microcontroller using standard I2C
- Wide voltage range makes it usable with 2.7V to 5.5V logic
The MCP9808 digital temperature sensor is one of the more accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°C to +125°C range and precision of +0.0625°C. They work great with any microcontroller using standard I2C. With three address jumpers on the back, you can connect up to 8 to a single I2C bus without address collisions. Best of all, a wide voltage range makes it usable with 2.7V to 5.5V logic!
Unlike the DS18B20, this sensor does not come in through-hole package so we placed this small sensor on a breakout board PCB for easy use. The PCB includes mounting holes, and pull down resistors for the 3 address pins.
Item Specifics
0.25°C typical precision over -40°C to 125°C range (0.5°C guaranteed max from -20°C to 100°C)
0.0625°C resolution
2.7V to 5.5V power and logic voltage range
Operating Current: 200 µA (typical)
Dimensions: 25.4mm x 17.6mm x 4.6mm / 1.0" x 0.7" x 0.2"
Weight: 1.6g / 0.1oz