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LTC2983 to measure temperature from all sort of probes [Chip Ideas]
posted December 2 2014 20:07.38 by Giorgos Lazaridis

Thermocouples (B, E, J, K, N, S, R, T), 2- 3- or 4-wire RTDs, thermistors, diodes. Name your probe and the LTC2983 from Linear Technology most likely can accept it in one of its 20 configurable inputs. It has a built in cold-junction compensation especially for the thermocouples. The LTC2983 offers great accuracy at 0.1oC and 0.001oC resolution

  • Directly Digitize RTDs, Thermocouples, Thermistors, and Diodes
  • Single 2.85V to 5.25V Supply
  • Results Reported in oC or oF
  • 20 Flexible Inputs Allow Interchanging Sensors
  • Automatic Thermocouple Cold Junction Compensation
  • Built-In Standard and User-Programmable Coefficients for Thermocouples, RTDs and Thermistors
  • Configurable 2-, 3-, or 4-Wire RTD Configurations
  • Measures Negative Thermocouple Voltages
  • Automatic Burn Out, Short-Circuit and Fault Detection
  • Buffered Inputs Allow External Protection
  • Simultaneous 50Hz/60Hz Rejection
  • Includes 10ppm/oC (max) Reference (I-Grade)

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

  • Documentation and datasheet of this chip here


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