MLX90641 – Far infrared thermal sensor array with 16x12px resolution

MLX90641 – Far infrared thermal sensor array with 16x12px resolution

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The MLX90641 is a 16×12 pixel IR array housed in an industry standard 4-lead TO39 package and is able to accurately measure temperatures in the range of -40 °C to +300 °C. The factory-calibrated devices ensure an accuracy of 1 °C in typical measurement conditions. The high accuracy is further supported by a Noise Equivalent Temperature Difference (NETD) of 0.1 K RMS at 4 Hz refresh rate. The refresh rate is programmable in steps from 0.5 to 64 Hz.

Two different field of view (FoV) options are available, a standard 55 ° x 35 ° and a wide angle 110 ° x 75 °. The device is simple to use, operating from a single 3.3 V supply and storing all results in internal RAM for access via an I²C compatible digital interface. A proprietary algorithm ensures high thermal stability, even in conditions where the temperature is changing rapidly. The device’s robustness, combined with the extended operating temperature range (-40 °C to +125 °C) enables applications in harsh thermal environments such as cooking, industrial and automotive applications.

Features

  • Extended operating temperature range (-40 °C to +125 °C)
  • Enhanced thermal stability
  • Low noise equivalent temperature difference (NETD) 0.1K RMS at 4 Hz refresh rate
  • Evaluation board available
  • I²C compatible digital interface
  • Two different field of view (FoV) options: standard 55 °x 35 ° and 110 °x 75 ° wide angle
  • Measurement object temperature between -40 to +300 °C
  • A typical target object temperature accuracy of 1 °C
  • No re-calibration needed
  • 4-pin TO39 package incorporating the requisite optics
  • Programmable refresh rate (in several steps between 0.5 and 64 Hz)

MLX90641 Block Diagram

MLX90641 Overview and Pin Description

more information: www.melexis.com

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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