Product details

Local sensor accuracy (max) 2 Type Local Operating temperature range (°C) -55 to 150 Supply voltage (min) (V) 2.65 Interface type SPI Supply voltage (max) (V) 5.5 Features UL recognized Supply current (max) (µA) 490 Temp resolution (max) (Bits) 11 Remote channels (#) 0 Rating Catalog
Local sensor accuracy (max) 2 Type Local Operating temperature range (°C) -55 to 150 Supply voltage (min) (V) 2.65 Interface type SPI Supply voltage (max) (V) 5.5 Features UL recognized Supply current (max) (µA) 490 Temp resolution (max) (Bits) 11 Remote channels (#) 0 Rating Catalog
VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WSON (NGK) 8 9 mm² 3 x 3
  • 0.25°C Temperature Resolution.
  • Shutdown Mode Conserves Power Between Temperature Reading
  • SPI and MICROWIRE Bus Interface
  • VSSOP-8 and WSON-8 Packages Save Space
  • UL Recognized Component

Key Specifications

  • Supply Voltage 2.65V to 5.5V
  • Supply Current
    • Operating260 μA (typ)490 μA (max)
    • Shutdown12 μA (typ)
  • Temperature Accuracy
    • −40°C to 85°C, ±2°C(max)
    • −10°C to 65°C, +1.5/−2°C(max)
    • −55°C to 125°C, +3/−2°C(max)
    • −55°C to 150°C, +3.5/−2°C(max)

All trademarks are the property of their respective owners.

  • 0.25°C Temperature Resolution.
  • Shutdown Mode Conserves Power Between Temperature Reading
  • SPI and MICROWIRE Bus Interface
  • VSSOP-8 and WSON-8 Packages Save Space
  • UL Recognized Component

Key Specifications

  • Supply Voltage 2.65V to 5.5V
  • Supply Current
    • Operating260 μA (typ)490 μA (max)
    • Shutdown12 μA (typ)
  • Temperature Accuracy
    • −40°C to 85°C, ±2°C(max)
    • −10°C to 65°C, +1.5/−2°C(max)
    • −55°C to 125°C, +3/−2°C(max)
    • −55°C to 150°C, +3.5/−2°C(max)

All trademarks are the property of their respective owners.

The LM70 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface available in WSON and VSSOP 8-pin packages. The host can query the LM70 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 µA. This mode is useful in systems where low average power consumption is critical.

The LM70 has 10-bit plus sign temperature resolution (0.25°C per LSB) while operating over a temperature range of −55°C to +150°C.

The LM70's 2.65V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications. These include thermal management and protection applications in hard disk drives, printers, electronic test equipment, and office electronics.

The LM70 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface available in WSON and VSSOP 8-pin packages. The host can query the LM70 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 µA. This mode is useful in systems where low average power consumption is critical.

The LM70 has 10-bit plus sign temperature resolution (0.25°C per LSB) while operating over a temperature range of −55°C to +150°C.

The LM70's 2.65V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications. These include thermal management and protection applications in hard disk drives, printers, electronic test equipment, and office electronics.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
TMP126 ACTIVE ±0.25°C SPI temperature sensor with 175°C operation, CRC and slew-rate alert SPI output with improved accuracy, extended temperature & voltage supply ranges, smaller package, less current & additional features

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 4
Type Title Date
* Data sheet LM70 SPI/MICROWIRE 10-Bit plus Sign Digital Temperature Sensor datasheet (Rev. G) 22 Mar 2013
Certificate UL Report Vol1-Sec4 Description E232195 09 Aug 2018
Application note AN-1256 Tiny Temperature Sensors for Portable Systems (Rev. A) 26 Apr 2013
Application note Tiny Temperature Sensors for Remote Systems 17 Feb 2003

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Driver or library

LM70SW-LINUX — Linux Driver for LM70

The Linux driver supports the LM70 series of Temperature Sensors. The Linux driver supports communication through the SPI 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:
  • lm70
  • tmp121
  • (...)
Simulation model

LM70 IBIS Model

SNIM010.ZIP (17 KB) - IBIS Model
Package Pins Download
VSSOP (DGK) 8 View options
WSON (NGK) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

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. ​​​​​​​​​​​​​​

Videos