Product details

Local sensor accuracy (Max) (+/- C) 0.5 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 2.7 Interface type I2C, SMBus Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 85 Temp resolution (Max) (bits) 12 Features ALERT, One-shot conversion Remote channels (#) 0 Addresses 8 Rating Catalog
Local sensor accuracy (Max) (+/- C) 0.5 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 2.7 Interface type I2C, SMBus Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 85 Temp resolution (Max) (bits) 12 Features ALERT, One-shot conversion Remote channels (#) 0 Addresses 8 Rating Catalog
SOIC (D) 8 19 mm² 3.91 x 4.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • High Accuracy:
    • ±0.5°C (Maximum) From −20°C to 100°C
    • ±1°C (Maximum) From −40°C to 125°C
  • Low Quiescent Current:
    • 50 µA (Typical)
    • 0.1-µA Standby
  • Resolution: 9 to 12 Bits, User-Selectable
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • 8 I2C/SMBus Addresses
  • Wide Supply Range: 2.7 V to 5.5 V
  • Small VSSOP-8 and SOIC-8 Packages
  • No Specified Power-up Sequence Required; Two-Wire Bus Pullups May Be Enabled Before V+
  • High Accuracy:
    • ±0.5°C (Maximum) From −20°C to 100°C
    • ±1°C (Maximum) From −40°C to 125°C
  • Low Quiescent Current:
    • 50 µA (Typical)
    • 0.1-µA Standby
  • Resolution: 9 to 12 Bits, User-Selectable
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • 8 I2C/SMBus Addresses
  • Wide Supply Range: 2.7 V to 5.5 V
  • Small VSSOP-8 and SOIC-8 Packages
  • No Specified Power-up Sequence Required; Two-Wire Bus Pullups May Be Enabled Before V+

The TMP275 is a ±0.5°C accurate integrated digital temperature sensor with a 12-bit analog-to-digital converter (ADC) that can operate as low as 2.7-V supply voltage and is pin- and register-compatible with the Texas Instruments LM75, TMP75, TMP75B, and TMP175 devices. This device is available in SOIC-8 and VSSOP-8 packages, and it requires no external components to sense the temperature. The TMP275 is capable of reading temperatures with a maximum resolution of 0.0625°C (12 bits) and as low as 0.5°C (9 bits), which allows the user to maximize efficiency by programming for higher resolution or faster conversion time. The device is specified over a temperature range of –40°C to 125°C.

The TMP275 device features SMBus and two-wire interface compatibility, and allows up to eight devices on the same bus with the SMBus overtemperature alert function. The factory-calibrated temperature accuracy and the noise-immune digital interface make the TMP275 the preferred solution for temperature compensation of other sensors and electronic components, without the need for additional system-level calibration or elaborate board layout for distributed temperature sensing.

The TMP275 is a ±0.5°C accurate integrated digital temperature sensor with a 12-bit analog-to-digital converter (ADC) that can operate as low as 2.7-V supply voltage and is pin- and register-compatible with the Texas Instruments LM75, TMP75, TMP75B, and TMP175 devices. This device is available in SOIC-8 and VSSOP-8 packages, and it requires no external components to sense the temperature. The TMP275 is capable of reading temperatures with a maximum resolution of 0.0625°C (12 bits) and as low as 0.5°C (9 bits), which allows the user to maximize efficiency by programming for higher resolution or faster conversion time. The device is specified over a temperature range of –40°C to 125°C.

The TMP275 device features SMBus and two-wire interface compatibility, and allows up to eight devices on the same bus with the SMBus overtemperature alert function. The factory-calibrated temperature accuracy and the noise-immune digital interface make the TMP275 the preferred solution for temperature compensation of other sensors and electronic components, without the need for additional system-level calibration or elaborate board layout for distributed temperature sensing.

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Technical documentation

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Type Title Date
* Data sheet TMP275 ±0.5°C Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout datasheet (Rev. F) PDF | HTML 04 May 2018
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Application note Calculating Useful Lifetimes of Temperature Sensors 06 Jul 2018
Technical article How to select a temperature sensor probe 18 Feb 2016
Application note Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) 06 May 2013

Design & development

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Driver or library

LM75SW-LINUX — Linux Driver for I2C temperature sensors

The Linux driver support LM75 compatible Temperature Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • LM75A
  • TMP100
  • TMP101
  • (...)
Simulation model

TMP275 IBIS Model TMP275 IBIS Model

Reference designs

TIDA-00018 — Temperature Sensor Interface Module for Programmable Logic Controllers (PLC)

The TIDA-00018 reference design enables faster development of high precision temperature measurement solutions using 24-Bit delta-sigma ADC and most widely used temperature sensors like thermocouple and RTD. The design guide will address the sensor signal conditioning, thermocouple cold junction (...)
Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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