Alternative Parts

  • LTC2983
    LTC2983

    Multi-Sensor High Accuracy Digital Temperature Measurement System

  • LTC2984
    LTC2984

    Multi-Sensor High Accuracy Digital Temperature Measurement System with EEPROM

Overview

Features and Benefits

  • Directly Digitizes 2-, 3-, or 4-Wire RTDs, Thermocouples, Thermistors, and Diodes
  • On-Chip EEPROM (LTC2986-1) Stores Channel Configuration Data and Custom Coefficients
  • Single 2.85V to 5.25V Supply
  • 10 Flexible Inputs Allow Interchanging Sensors
  • Automatic Thermocouple Cold Junction Compensation
  • Built-In Standard and User-Programmable Coefficients for Thermocouples, RTDs and Thermistors
  • Measures Negative Thermocouple Voltages
  • Automatic Burn Out, Short-Circuit and Fault Detection
  • Buffered Inputs Allow External Protection
  • Simultaneous 50Hz/60Hz Rejection
  • Includes 15ppm/°C (Max) Reference
  • Includes Special Protection Modes

Product Details

The LTC2986 measures a wide variety of temperature sensors and digitally outputs the result, in °C or °F, with 0.1°C accuracy and 0.001°C resolution. The LTC2986 can measure the temperature of virtually all standard (Type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold junction temperatures and linearize the results. The device can also measure temperature with standard 2-, 3-, or 4-wire RTDs, thermistors, and diodes. The LTC2986 includes excitation current sources and fault detection circuitry appropriate for each type of temperature sensor.

The LTC2986/LTC2986-1 are 10-channel software and pin-compatible versions of the 20-channel LTC2983/LTC2984. Additional features include special modes that enable easy protection in universal multi-sensor applications, custom tables for generic ADC readings, and direct temperature readout from active analog temperature sensors. The LTC2986-1 is the EEPROM version of the LTC2986.

Applications

  • Direct Thermocouple Measurements
  • Direct RTD Measurements
  • Direct Thermistor Measurements
  • Custom Sensor Applications

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (4)

Software & Systems Requirements

Evaluation Software

LTC2986 Demo Software

The LTC2986 demo software is designed to help configure, program and run the LTC2986. It can configure the LTC2986, save the configuration, check for configuration errors, run the conversion results into a text file, and create Linduino-ready C code based on the configuration. The software can be used by itself, or used in conjunction with the DC2618 demo circuit.

Tools & Simulations

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits.

Linduino

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

LTC2986 Discussions

Re: LTC2984H (high temperature +125C)
3 week(s) ago in Temperature Sensors
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.