Description
The TMP119 High-Precision Temperature Sensor is an I2C temperature sensor that will help you easily add super-precise temperature measurement and adjustment to your project. In addition to the obvious support for reading the temperature, the TMP119 can also monitor the temperature and alert you when corrective action needs to be taken.
The TMP119 has 16-bit / 0.0078°C measurement resolution, wide operating range of -55 to 155°C, and up to ±0.03°C (typical) accuracy from 0°C to 45°C. The chip also has high and low temperature alerts and interrupt support, and hardware support required for NIST traceability (contact TI for the NIST documents), this temperature sensor is perfect for applications where you need to keep a close eye on temperature. The manufacturer, Texas Instruments, suggests it for use in sensitive applications like thermostats and cold chain asset tracking, or even gas and heat meters!
TMP119 temperature sensor has different accuracy for different ranges, here's what you can expect as the typical & maximum variation for popular temperature ranges:
- ±0.03°C (typical) from 0°C to 45°C
- ±0.08°C (maximum) from 0°C to 45°C
- ±0.09°C (maximum) from –25°C to 85°C
- ±0.12°C (maximum) from –40°C to 85°C
- ±0.15°C (maximum) from –55°C to 125°C
- ±0.2°C (maximum) from –55°C to 150°C
Compared to the TMP117, the TMP119 has better accuracy but has the same firmware interface (other than the Chip Identifier being different so you can tell which one you have)
To make using it as easy as possible, we’ve put the TMP119 on a breakout PCB in our Stemma QT form factor with a sprinkle of support circuitry to give you options when testing. You can either use a breadboard or the SparkFun qwiic compatible STEMMA QT connectors, and compatibility with 5V voltage levels as commonly found on Arduinos, as well as 3.3V logic used by many other boards like the Raspberry Pi or our Feathers. QT Cable is not included, but we have a variety in the shop for quick plug-and-play support.
To get started, all you need to do is look over the Pinouts page to familiarize yourself with the board, and then use the TMP117/TMP119 Arduino or Python & CircuitPython pages for instructions on how to wire up the TMP119 to your board, as well as libraries and example code to get you started.
Technical Details
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