MCP9808 High Accuracy I2C Temperature Sensor Breakout Board

Description

This I2C digital temperature sensor is one of the more accurate/precise we've ever seen, with a typical accuracy of ±0.25^oC over the sensor's -40^oC to +125^oC range and precision of +0.0625^oC. They work great with any microcontroller using standard i2c. There are 3 address pins so 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.

Some quick specifications

• Simple I2C control
• Up to 8 on a single I2C bus with adjustable address pins
• 0.25^oC typical precision over -40^oC to 125^oC range (0.5^oC guaranteed max from -20^oC to 100^oC)
• 0.0625^oC resolution
• 2.7V to 5.5V power and logic voltage range
• Operating Current: 200 μA (typical)

Technical specifications

• Sensing Temperature: -40^oC ~ 125^oC
• Accuracy: 0.25^oC typical
• Voltage - Supply: 2.7V ~ 5.5V
• Operating Temperature: -40^oC ~ 125^oC
• Uses any I2C address from 0x18 thru 0x1F
• Datasheets, Fritzing object, PCB CAD files and more in the tutorial

Dimensions

• 21mm x 13mm x 2mm / 0.8" x 0.5" x 0.08"
• Weight: 0.9g

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