The LM75A is an industry-standard digital temperature sensor with an integrated sigma-delta analog-to-digital converter (ADC) and I2C interface. The LM75A provides 9-bit digital temperature readings with an accuracy of ±2°C from –25°C to 100°C and ±3°C over –55°C to 125°C.
The LM75A operates with a single supply from 2.7 V to 5.5 V. Communication is accomplished over a 2-wire interface which operates up to 400 kHz. The LM75A has three address pins, allowing up to eight LM75A devices to operate on the same 2-wire bus. The LM75A has a dedicated overtemperature output (O.S.) with programmable limit and hysteresis. This output has programmable fault tolerance, which lets the user to define the number of consecutive error conditions that must occur before O.S. is activated. The wide temperature and supply range and I2C interface make the LM75A ideal for a number of applications including base stations, electronic test equipment, office electronics, personal computers, and any other system in which thermal management is critical to performance. The LM75A is available in an SOIC-8 package and an VSSOP-8 package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM75A Digital Temperature Sensor and Thermal Watchdog With Two-Wire Interface datasheet (Rev. P) | PDF | HTML | 30 Dec 2014 |
| 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 | Temperature sensors: PCB guidelines for surface mount devices (Rev. A) | 18 Jan 2019 | ||
| 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 | ||
| User guide | LM75A User’s Guide | 17 Jan 2013 | ||
| User guide | LM75AEB User’s Guide (Rev. A) | 24 Aug 2012 | ||
| Application note | Tiny Temperature Sensors for Remote Systems | 17 Feb 2003 |
For additional terms or required resources, click any title below to view the detail page where available.
Available in Linux Main line: Yes
Available through git.ti.com: N/A
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| VSSOP (DGK) | 8 | View options |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.