Automotive High Temperature Sensor (HTS) Reference Design
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Key Document


The main focus of the TIDA-01235 reference design is to provide a high density, low cost, and good accuracy thermocouple analog front end. The protection strategies involved in the design protect the analog front end from coupling transients. This design meets the requirements of automotive-exhaust gas temperature sensors.

  • Compatible with Type N thermocouple probes
  • Design specifications for  –40°C to 1300°C (temperature range of thermocouple)
  • Accuracy of of < ±1°C over temperature range –40°C to 1300°C
  • Implements cold junction compensation (CJC) using LMT01-Q1 based
  • Protection against coupling transients, surge transients on thermocouple front end

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS1118-Q1  Automotive 16-bit, 860-SPS, 4-ch, delta-sigma ADC with PGA, oscillator, VREF, temp sensor and SPI  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
LMT01-Q1  Automotive Grade, 0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface  Temperature sensors  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS1118-Q1 Download Download
LMT01-Q1 Download Download
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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 2511 02 Dec 2016
Design files (6)
Title Type Size (KB) Date
ZIP 439 10 Oct 2016
ZIP 789 10 Oct 2016
PDF 1006 10 Oct 2016
PDF 181 10 Oct 2016
PDF 71 10 Oct 2016
PDF 381 10 Oct 2016
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Reference Designs (2)

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