The TMP119 is a high-precision digital temperature sensor. The device is designed to help meet ASTM E1112 and ISO 80601 accuracy requirements for electronic patient thermometers. The TMP119 provides a 16-bit temperature result with a resolution of 0.0078°C and an accuracy of up to ±0.08°C across the temperature range of 0°C to 45°C with no calibration. The TMP119 has an interface that is I2C- and SMBus™-compatible, programmable alert functionality, and the device can support up to four devices on a single bus. Integrated EEPROM is included for device programming with an additional 48-bits memory available for general use. The TMP119 operates from 1.7V to 5.5V and typically consumes 3.5µA for a 1Hz conversion cycle.
For non-medical applications, the TMP119 can serve as a single chip digital alternative to a Platinum RTD. The TMP119 has an accuracy comparable to a Class AA RTD, while only using a fraction of the power of the power typically needed for a PT100 RTD. The TMP119 simplifies the design effort by removing many of the complexities of RTDs such as precision references, matched traces, complicated algorithms, and calibration. The device is designed to be strain tolerant, allowing robustness over typical strains often seen in PCB manufacturing, including device soldering, molding, underfill, and board flexing.
The TMP119 units are 100% tested on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 accredited standards.
NIST calibration documentation is available. Request now
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TMP119 Ultra-High Accuracy, Low-Power, Digital Temperature Sensor With SMBus™- and I2 C-Compatible Interface datasheet | PDF | HTML | Jan 30, 2024 |
| Application note | How to Design Alert Overtemperature and Undertemperature Systems | PDF | HTML | Mar 9, 2026 | |
| Product overview | NIST Traceability for Temperature and Humidity Sensors | PDF | HTML | Apr 15, 2025 | |
| Product overview | Ultra-Small Temperature Sensor Comparison Guide (Rev. A) | PDF | HTML | Jan 21, 2025 | |
| Application note | Analyzing PCB Thermal Resistance in High-Accuracy Temperature Sensors (Rev. A) | PDF | HTML | Oct 15, 2024 | |
| Certificate | TMP119EVM EU Declaration of Conformity (DoC) | PDF | HTML | Sep 26, 2023 | |
| Application note | Low-Power Design Techniques for Temperature-Sensing Applications | Jun 6, 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YBG) | 6 | Ultra Librarian |
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