Automotive Grade, ±1°C Temperature Sensor with 200°C Capability and SPI Interface


Product details


Local sensor accuracy (Max) (+/- C) 1 Type Local Operating temperature range (C) -40 to 200 Supply voltage (Min) (V) 3 Interface type SPI Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 456 Temp resolution (Max) (bits) 16 Features ALERT, One-shot conversion Remote channels (#) 0 Addresses NA Rating Catalog open-in-new Find other Digital temperature sensors

Package | Pins | Size

CFP (NAC) 10 42 mm² 6.86 x 6.12 open-in-new Find other Digital temperature sensors


  • LM95172EWG is AEC-Q100 Grade 0 Qualified and is Manufactured on an Automotive Grade Flow.
  • 13-Bit (0.0625°C LSB) to 16-Bit (0.0078125°C LSB) Temperature Resolution
  • Wide −40°C to +200°C Temperature Range
  • 35 ms Best Conversion Time Tracks Fast Temp Changes
  • OVERTEMP Digital Output Switches
    when TDIE > THIGH
  • Shutdown Mode Saves Power yet Wakes up for One-Shot Temperature Update
  • SPI and MICROWIRE Bus Interface
  • 10-Pin Cerpack High-Temperature Ceramic Package

Key Specifications

  • Analog and Digital Supply Voltage 3.0V to 5.5V
  • Total Supply Current     Operating 400 µA (typ)
    • Shutdown −40°C to +140°C 4 µA (max)
    • Shutdown −40°C to +175°C 12 µA (max)
    • Shutdown −40°C to +200°C 28 µA (max)
  • Temperature Accuracy
    • +175°C to +200°C ±3.0°C (max)
    • +130°C to +160°C ±1.0°C (max)
    • +120°C to +130°C ±2.0°C (max)
    • +160°C to +175°C ±2.0°C (max)
    • −40°C to +120°C ±3.5°C (max)
  • Temperature Resolution
    • 13-bit mode 0.0625°C/LSB
    • 16-bit mode 0.0078125°C/LSB
  • Conversion Time
    • 13-bit mode 43 ms (max)
    • 16-bit mode 350 ms (max)

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The LM95172EWG is an integrated digital-output temperature sensor with a Serial Peripheral Interface (SPI) and MICROWIRE™-compatible interface in a 10-pin Cerpack high temperature ceramic package. It features a very linear Sigma-Delta Analog-to-Digital Converter (ADC), high accuracy, fast conversion rates, and extremely low output noise. With an operating temperature as low as -40°C and optimized accuracy from 120°C to 200°C, it is ideal for high-temperature applications.

The over-temperature alarm output (OVERTEMP) asserts when the die temperature exceeds a programmed THIGH limit. The user-programmed TLOW limit creates a temperature-stabilizing hysteresis when the ambient temperature is near the trip point.

The LM95172EWG can be programmed to operate from 13 bits (0.0625°C per LSB) to 16 bits (0.0078125°C per LSB) resolution. The LM95172EWG powers up in 35 ms, the fastest conversion time, with temperature output set at 13-bit resolution. The resolution may then be changed to 14-, 15- or 16-bits. When in the 13-, 14- or 15-bit resolution mode, the least significant bit in the 16-bit temperature register toggles after the completion of each conversion. This bit may be monitored to verify that the conversion is complete.

The high noise immunity of the Serial I/O (SI/O) output makes the LM95172EWG ideal for use in challenging electromagnetic environments.

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Technical documentation

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Type Title Date
* Data sheet LM95172 13-Bit to 16-Bit 200C Digital Temp Sensor with 3-Wire Interface datasheet (Rev. B) Mar. 25, 2013
Technical article How to maximize powertrain efficiency and reliability with high-accuracy temperature sensors May 10, 2021
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 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
More literature Die D/S LM95172QA2-MDA 13-BIT to 16-BIT Digital Temp Sensor w/ 3-wire Interface Jan. 10, 2013
More literature Die D/S LM95172QA2 MDA MCD2670A 13-Bit to 16-Bit 200°C Dig Temp Sen w/ 3-Wire IF Oct. 19, 2012
User guide LM95172EVM User’s Guide Sep. 25, 2012

Design & development

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Software development

Eval Board Software For Hardware Monitors And Digital Temperature Sensors
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.

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