Automotive ±0.75°C Temp Sensor with I2C/SMBus Interface in Industry Std LM75 Form Factor & Pinout


Product details


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Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Digital temperature sensors


  • AEC-Q100 Qualified with:
    • Temperature Grade 1: –40°C to +125°C Ambient Operation Temperature Range
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C6
  • High Accuracy:
    • ±0.75°C (Maximum) from −10°C to +85°C
    • ±1.5°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 8-Pin VSSOP and SOIC Packages
  • No Specified Power-Up Sequence Required, Two-Wire Bus Pullups Can Be Enabled Before V+

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The TMP275-Q1 is a ±0.75°C, accurate integrated digital temperature sensor with a 12-bit, analog-to-digital converter (ADC) that can operate on a supply voltage as low as 2.7 V and is pin- and register-compatible with the Texas Instruments’ LM75, TMP75, TMP75B, and TMP175 devices. The TMP275-Q1 device is available in 8-pin SOIC and VSSOP packages and requires no external components to sense temperature. The device is capable of reading temperatures with a maximum resolution of 0.0625°C (12 bits) and as low as 0.5°C (9 bits), thus allowing the user to maximize efficiency by programming for higher resolution or faster conversion time. The device is specified over the temperature range of –40°C to +125°C.

The TMP275-Q1 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-Q1 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
* Datasheet TMP275-Q1 Automotive Grade ±0.75°C Temperature Sensor with I2C and SMBus Interface in Industry-Standard LM75 Form Factor and Pinout datasheet (Rev. B) Apr. 26, 2017
Technical article How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical article How to select a temperature sensor probe Feb. 18, 2016
Application note Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) May 06, 2013

Design & development

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Software development

Linux Driver for I2C temperature sensors
LM75SW-LINUX 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 N/A

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

Design tools & simulation

SLOM204.ZIP (22 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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