This is another example of how to wire the TMP461. The TMP461 is a high-accuracy remote and local temperature sensor developed by Texas Instruments, this device has a pin-programmable bus address and also operates on the i2C protocol driven by a low-power with a high accuracy temperature sensing.

Another feature of this sensor utilizes remote sensing that communicates on a serial bus, typically a discrete NPN or PNP transistor, or a substrate thermal transistor or diones that integrate parts of a microprocessor, microcontroller, or FPGA, in addition, the temperature is represented as a 12-bit digital code for both local and remote sensors, providing a resolution of 0.0625°C.

The 2wire serial interface can accept an address of up to 9 different programmable addresses. The TMP461 integrates an advanced series of resistance cancellations, a programmable non-ideality factor, programmable offset, programmable temperature limits, and a programmable digital filter combined to enhance your thermal monitoring solutions with improved high accuracy and noise immunity.

The TMP461 is suitable for muti-location implementation, especially in precision instruments, communication devices, Embedded Applications, Smart Batteries, Smart Battery Controller, Smart Battery Management Systems, Test equipment, LED lighting, Processor temperature monitoring, industrial applications, and Precision Instruments.

The TMP461 chip is specified for operation over a supply voltage range from 1.7v ~ 3.6v and a temperature range of 40°C ~ 125°C. For more technical details and additional configuration please refer to the datasheet below.


  • Arduino IDE | PlatformIO
  • Test Boards :
    • Note: The Diagram below is using  ATMEGA4809 Microcontroller  (please refer to your  MCU’s respective pin-outs & bus configuration)
  • Resistors (See below diagram for required value)
  • Capacitor(See below diagram for required value)

Wiring Diagram & Schematics

Source Code – Single Address

Source Code – Multi Address

PCB Board Milling / Gerber File


  • Download Texas Instruments  TMP461 Datasheet | PDF
  • Download Texas Instruments TMP461 Arduino Code Library | ZIP
Wiring the Texas Instruments – TMP461 High Accuracy Temperature Sensor
Tagged on:                 


One thought on “Wiring the Texas Instruments – TMP461 High Accuracy Temperature Sensor

  • at

    Можна видалити підтягуючий резистор? Дякую – Слава Україні


Leave a Reply

Your email address will not be published. Required fields are marked *