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7Semi TMP119 High-Accuracy Digital Temperature Sensor Module (I2C Qwiic)
The 7Semi TMP119 High-Accuracy Digital Temperature Sensor Module is a precision temperature-sensing breakout board built around the Texas Instruments TMP119 digital temperature sensor IC, delivering up to plus or minus 0.08 degree C accuracy across a -45 to +70 degree C measurement range with 16-bit resolution output over a standard I2C interface. The plus or minus 0.08 degree C accuracy specification places the TMP119 in the highest-accuracy tier of digital temperature sensors available in the TO-SOT and breakout module format class, substantially outperforming the plus or minus 0.5 degree C to plus or minus 1 degree C accuracy typical of general-purpose sensors such as the TMP102, LM75, and SHT30 in applications where temperature measurement error directly affects process quality, calibration validity, product compliance, or patient safety. This level of accuracy makes the TMP119 module appropriate for industrial process monitoring, scientific instrumentation, environmental reference sensing, medical equipment auxiliary temperature measurement, and precision IoT systems where the measurement uncertainty of lower-accuracy sensors would introduce unacceptable error in the application output.
Dual Qwiic-compatible connectors on the module enable direct daisy-chain integration into Qwiic and STEMMA QT sensor ecosystems without soldering, allowing the TMP119 to be added to an existing multi-sensor I2C chain with a JST-SH cable connection in seconds during prototyping and field deployment. Configurable I2C address selection allows up to 4 TMP119 modules to operate simultaneously on the same I2C bus without address conflict, supporting multi-point temperature mapping applications across multiple thermal zones in a single embedded system without I2C multiplexer hardware. The dedicated interrupt output pin enables hardware-triggered temperature threshold alerts to the host microcontroller without continuous polling of the sensor over I2C, reducing host processor wake cycles and I2C bus activity in low-power IoT and battery-powered monitoring builds where poll-based temperature monitoring would prohibitively increase average current consumption. Integrated EEPROM stores the sensor's configuration, threshold settings, and calibration data across power cycles without re-initialisation from the host, and programmable temperature threshold alerts allow the upper and lower temperature trip points to be set to application-specific values for autonomous over-temperature and under-temperature event detection. The 3.3V supply voltage and I2C interface maintain direct compatibility with ESP32, STM32, RP2040, Raspberry Pi, and Arduino platform builds at standard 3.3V logic levels without level shifters in most standard host configurations.
Features
- Sensor IC: Texas Instruments TMP119 digital temperature sensor for precision temperature measurement in industrial, scientific, medical, and IoT applications
- Accuracy: Up to plus or minus 0.08 degree C for the highest-tier digital temperature sensor accuracy, substantially above general-purpose sensor alternatives
- Temperature Range: -45 to +70 degrees C measurement range covering sub-zero environmental and standard indoor and industrial temperature monitoring conditions
- 16-Bit Resolution: 16-bit digital temperature output for high-resolution temperature data beyond the 12-bit and 13-bit resolution of lower-specification digital temperature sensors
- I2C Interface: Standard I2C communication for direct integration with Arduino, ESP32, STM32, RP2040, Raspberry Pi, and Linux SBC host platforms
- Dual Qwiic Connectors: Two Qwiic-compatible JST-SH connectors for solder-free plug-and-play daisy-chain integration into Qwiic and STEMMA QT sensor ecosystems
- Configurable I2C Address: Multiple I2C address selection options for up to 4 TMP119 modules on the same I2C bus without address conflict or multiplexer hardware
- Interrupt Output Pin: Dedicated hardware interrupt pin for temperature threshold alert delivery to the host without continuous I2C polling
- Programmable Temperature Thresholds: User-configurable upper and lower temperature alert trip points for autonomous over-temperature and under-temperature event detection
- Integrated EEPROM: Onboard EEPROM stores sensor configuration, threshold settings, and calibration data across power cycles without host re-initialisation
- Ultra-Low Power Consumption: Low active and standby current for battery-powered and energy-harvesting IoT temperature monitoring node applications
- 3.3V Operation: 3.3V supply for direct compatibility with 3.3V microcontroller and SBC platforms without external level shifting in standard configurations
- Excellent Long-Term Stability: High repeatability and long-term measurement stability for sustained accuracy in production and permanently installed monitoring applications
- Fast Temperature Conversion: Rapid conversion time for responsive temperature monitoring in time-sensitive industrial and scientific measurement applications
- Compact Breakout Board: Small PCB footprint for integration in space-constrained embedded, portable, and wearable temperature sensing builds.
Specifications
- Category: Digital Temperature Sensor
- Operational Temperature Range: -40C - 80C
- Accuracy: +-0.08C
- Communication Interface: I2C
- Operational Voltage: 3.3V
- Dimension: L=12mm W=7mm H=4.73mm
Applications
- Industrial process and equipment temperature monitoring requiring plus or minus 0.08 degree C accuracy beyond the capability of general-purpose digital temperature sensors
- Scientific instrumentation and laboratory equipment requiring 16-bit resolution precision temperature reference measurements with EEPROM-stored calibration data
- Environmental reference sensing stations requiring high-accuracy temperature measurement with interrupt-driven threshold alerts and multi-sensor I2C bus addressing
- Medical equipment auxiliary temperature monitoring requires the accuracy class and long-term stability of the TMP119 for safety-critical temperature sensing roles
- Advanced IoT temperature monitoring nodes requiring ultra-low power consumption, hardware interrupt threshold alerts, and Qwiic plug-and-play multi-sensor chain integration
- ESP32, STM32, RP2040, Arduino, and Raspberry Pi precision temperature sensing builds require a Qwiic-compatible 16-bit I2C temperature sensor with configurable address and interrupt output.
Package Includes
- 1x 7Semi TMP119 High-Accuracy Digital Temperature Sensor Module (I2C Qwiic)
