±1.5°C Temperature Sensor with SPI Interface

Top

Product details

Parameters

Local sensor accuracy (Max) (+/- C) 1.5 Product type Local Operating temperature range (C) -40 to 150 Supply voltage (Min) (V) 2.65 Interface type SPI, Microwire Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 550 Temp resolution (Max) (bits) 14 Remote channels (#) 0 Addresses NA Rating Catalog open-in-new Find other Digital temperature sensors

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 WSON (NGG) 6 9 mm² 3 x 3 open-in-new Find other Digital temperature sensors

Features

  • LM71Q is AEC-Q100 Grade 0 Qualified and is Manufactured on an Automotive Grade Flow
  • 5-Pin SOT-23 Package or 6-Pin No-Pull-Back WSON Package
  • Operates Over a Full −40°C to +150°C Range
  • SPI and MICROWIRE Bus Interface
  • Key Specifications:
    • Supply Voltage: 2.65V to 5.5V
    • Supply Current
      • Operating: 300 µA (typ)
      • 550 µA (max)
    • Temperature Accuracy
      • −10°C to +65°C: ±1.5°C (max)
      • −40°C to 150°C: +3/− 2°C (max)
    • Temperature Resolution: 31.25 m°C

All trademarks are the property of their respective owners.

open-in-new Find other Digital temperature sensors

Description

The LM71 is a low-power, high-resolution digital temperature sensor with an SPI and MICROWIRE compatible interface, available in the 5-pin SOT-23 or the 6-pin WSON (no pull back) package. The host can query the LM71 at any time to read temperature. Its low operating current is useful in systems where low power consumption is critical.

The LM71 has 13-bit plus sign temperature resolution (0.03125°C per LSB) while operating over a temperature range of −40°C to +150°C.

The LM71’s 2.65V to 5.5V supply voltage range, fast conversion rate, low supply current, and simple SPI interface make it ideal for a wide range of applications. The LM71Q is available in the 5-lead SOT-23 package only.

open-in-new Find other Digital temperature sensors
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet LM71/LM71Q SPI/MICROWIRE 13-Bit Plus Sign Temperature Sensor datasheet (Rev. E) Aug. 16, 2018
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Application notes LM71/LM71-Q1 Errata Jul. 13, 2018
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018
More literature Die D/S LM71A MDA MCD1760A SPI/Microwire 13-Bit Plus Sign Temperature Sensor Oct. 19, 2012
More literature Die D/S LM71A MDA MCD2190A SPI/Microwire 13-Bit Plus Sign Temperature Sensor Oct. 19, 2012
More literature Die D/S LM71A MDO MCD5010A SPI/MICROWIRE 13-Bit Plus Sign Temperature Sensor Oct. 19, 2012
More literature Die D/S LM71A MDO MCD6000A SPI/Microwire 13-Bit Plus Sign Temperature Sensor Oct. 19, 2012
More literature Die D/S LM71A1 MDA MWA +1.5°C accuracy, SPI digital interface Oct. 19, 2012

Design & development

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

Software development

DRIVERS & LIBRARIES Download
Eval Board Software for Hardware Monitors and Digital Temp Sensors
DIGITALTEMPSENSORSEVM-SW — Evaluation Board Software for Hardware Monitors and Digital Temperature Sensors
DRIVERS & LIBRARIES Download
Linux Driver for LM70
LM70SW-LINUX 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
  • lm71 (...)
DRIVERS & LIBRARIES Download
Eval Board Software For Hardware Monitors And Digital Temperature Sensors
SENSOREVAL SensorEval
SensorEval software supports the latest TI temperature sensor and hardware monitor evaluation boards via USB interface. It also allows access to sensors mounted directly on motherboards that support Intel chip sets.

  • Download SensorEval Software and Manual
  • Windows XP support is offered for (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options
WSON (NGG) 6 View options

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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

Related videos