Product details

Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -55 to 125 Supply voltage (min) (V) 1.7 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (μA) 375 Temp resolution (max) (bps) 12 Remote channels (#) 1 Addresses 9 Rating HiRel Enhanced Product
Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -55 to 125 Supply voltage (min) (V) 1.7 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (μA) 375 Temp resolution (max) (bps) 12 Remote channels (#) 1 Addresses 9 Rating HiRel Enhanced Product
VSSOP (DGS) 10 14.7 mm2 3 x 4.9
  • Remote diode temperature sensor accuracy: ±1°C
  • Local temperature sensor accuracy: ±1°C
  • Resolution for local and remote channels: 0.0625°C
  • Supply and logic voltage range: 1.7V to 3.6V
  • 35μA operating current (1 SPS), 3μa 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 VSSOP package
  • Supports defense, aerospace, and medical applications
    • Military temperature range (–55°C to 125°C)
    • Controlled baseline
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Wafer lot traceability
  • Remote diode temperature sensor accuracy: ±1°C
  • Local temperature sensor accuracy: ±1°C
  • Resolution for local and remote channels: 0.0625°C
  • Supply and logic voltage range: 1.7V to 3.6V
  • 35μA operating current (1 SPS), 3μa 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 VSSOP package
  • Supports defense, aerospace, and medical applications
    • Military temperature range (–55°C to 125°C)
    • Controlled baseline
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Wafer lot traceability

The TMP461-EP 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-EP 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 1.7V to 3.6V, and a temperature range of –55°C to 125°C.

The TMP461-EP 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-EP 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 1.7V to 3.6V, and a temperature range of –55°C to 125°C.
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Technical documentation

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* Data sheet TMP461-EP (Enhanced Product), High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address datasheet PDF | HTML 15 Sep 2025
* Radiation & reliability report TMP461-EP Enhanced Product Qualification and Reliability Report PDF | HTML 20 Aug 2025

Design & development

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Evaluation board

TMP461EPEVM — TMP461EP evaluation module

The TMP461EP evaluation module (EVM) is designed to provide a quick setup to evaluate the TMP461-EP device and gain familiarity with the device down to the bit-by-bit register level. The TMP461EPEVM is designed to be used as is, along with the evaluation module GUI. Alternatively, the sensor and (...)
User guide: PDF | HTML
Not available on TI.com
GUI for evaluation module (EVM)

TMP461EVM-GUI — GUI for TMP461/-EP evaluation module (EVM)

GUI for TMP461/-EP EVM available to users both web-based and downloadable
Supported products & hardware

Supported products & hardware

Products
Digital temperature sensors
TMP461 — High accuracy remote and local temperature sensor with pin-programmable bus address TMP461-EP — Enhanced-product high-accuracy remote and local temperature sensor with pin-programmable address
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VSSOP (DGS) 10 Ultra Librarian

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