TMP461
High accuracy remote and local temperature sensor with pin-programmable bus address
TMP461
- Remote Diode Temperature Sensor Accuracy: ±0.75°C
- Local Temperature Sensor Accuracy: ±1°C
- Resolution for Local and Remote Channels: 0.0625°C
- Supply and Logic Voltage Range: 1.7 V to 3.6 V
- 35-µA Operating Current (1 SPS),
3-µA Shutdown Current - Series Resistance Cancellation
- η-Factor and Offset Correction
- Programmable Digital Filter
- Diode Fault Detection
- Two-Wire and SMBus™ Serial Interface Compatible with Pin-Programmable Address
- 10-Lead WQFN Package
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.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | TMP461 High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address datasheet (Rev. B) | PDF | HTML | 18 Aug 2016 |
Application note | Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing | PDF | HTML | 03 Jan 2022 | |
Application note | Remote Temperature Transistor Sensor Selection Guide | PDF | HTML | 24 Mar 2021 | |
Technical article | Interface to sensors in seconds with ASC Studio | 12 Nov 2020 | ||
Application note | How to Boost Your CPU, GPU, and SoC Performance Through Thermal Accuracy | PDF | HTML | 22 Sep 2020 | |
Application note | Optimizing Remote Diode Temperature Sensor Design (Rev. A) | 18 Dec 2019 | ||
EVM User's guide | TMP461EVM User’s Guide and Software Tutorial (Rev. A) | 11 Sep 2019 | ||
EVM User's guide | TMP461EVM-CVAL User's Guide and Software Tutorial | 25 Sep 2017 | ||
EVM User's guide | TMP461EVM User’s Guide and Software Tutorial | 08 Jul 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
TMP461EVM — TMP461 Temp Sensor Evaluation Module
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, (...)
ASC-STUDIO-TMP461 — ASC studio for configuring all aspects of the TMP461 temperature sensor
Supported products & hardware
Products
Digital temperature sensors
SBOC594 — Remote Temperature Sensor Calibration Tool
Supported products & hardware
Products
Digital temperature sensors
Package | Pins | Download |
---|---|---|
WQFN (RUN) | 10 | View options |
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