The TMP461 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or field-programmable gate arrays (FPGAs). Temperature is represented as a 12-bit digital code for both local and remote sensors, giving a resolution of 0.0625°C. The two-wire serial interface accepts the SMBus communication protocol with up to nine different pin-programmable addresses.
Advanced features [such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter] are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.
The TMP461 is ideal for multi-location, high-accuracy temperature measurements in a variety of communication, computing, instrumentation, and industrial applications. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V, and a temperature range of –40°C to 125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TMP461 High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address datasheet (Rev. B) | PDF | HTML | Aug 18, 2016 |
| Application note | How to Read and Interpret Digital Temperature Sensor Output Data (Rev. A) | PDF | HTML | Jan 21, 2025 | |
| Application brief | Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing | PDF | HTML | Jan 3, 2022 | |
| Application note | Remote Temperature Transistor Sensor Selection Guide | PDF | HTML | Mar 24, 2021 | |
| Technical article | Interface to sensors in seconds with ASC Studio | PDF | HTML | Nov 12, 2020 | |
| Application note | How to Boost Your CPU, GPU, and SoC Performance Through Thermal Accuracy | PDF | HTML | Sep 22, 2020 | |
| Application note | Optimizing Remote Diode Temperature Sensor Design (Rev. A) | Dec 18, 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
The TMP461 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (RUN) | 10 | Ultra Librarian |
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