TIDA-00468

Optimized Latency, Power and Memory Footprint Thermocouple Sensing Front-end Reference Design

TIDA-00468

Design files

Overview

The TIDA-00468 Reference design shows how to build an isolated thermocouple sensing front-end with optimized power-consumption for loop powered application while:
• reducing footprint from classical look-up table approach and
• keeping the fast response time of linear piece wise interpolation

Features
  • Sensor Input: K-Type Thermocouple
  • Temperature range:-270..1372 C
  • System accuracy: +/- 0.2K
  • Piecewise linear interpolation
  • Look-up table size: 320 bytes

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUA11A.PDF (2155 K)

Reference design overview and verified performance test data

TIDRFI7.PDF (374 K)

Detailed schematic diagram for design layout and components

TIDRFI8.PDF (195 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRFI9.PDF (144 K)

Detailed overview of design layout for component placement

TIDRFJ1.ZIP (10039 K)

Files used for 3D models or 2D drawings of IC components

TIDCAI9.ZIP (1690 K)

Design file that contains information on physical board layer of design PCB

TIDRFJ0.PDF (742 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

I2C general-purpose I/Os (GPIOs)

TCA953516-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430FR594916 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision ADCs (<=10MSPS)

ADS122024-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC w/ PGA, VREF, 2x IDACs & SPI interface

Data sheet document-pdfAcrobat PDF open-in-new HTML
Series voltage references

REF50202.048-V, 3-µVpp/V noise, 3-ppm/°C drift precision series voltage reference

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Optimized Sensor Linearization for Thermocouple Design Guide (Rev. A) Aug. 28, 2015

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