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Melexis MLX90640 Far infrared thermal sensor array (32x24 RES)

The Melexis MLX90640 offers a cost-effective alternative to more expensive high-end thermal cameras. This 32x24 pixel device is suited to safety and convenience applications that include fire prevention systems, smart buildings, intelligent lighting, IP/surveillance cameras, HVAC equipment and vehicle seat occupancy detection. It has a -40°C to 85°C operational temperature range and can measure object temperatures between -40°C and 300°C. Maintaining high levels of precision across its full measurement scale, this infrared sensor delivers a typical target object temperature accuracy of ±1°C. It also exhibits superior noise performance. Unlike microbolometer alternatives, the sensor does not need frequent re-calibration, thus ensuring continuous monitoring and lowering system cost. The Melexis MLX90640 is supplied in a compact, 4-pin TO39 package incorporating the requisite optics. An I²C-compatible digital interface simplifies integration.

Key features MLX90640

  • -40 to 85°C operational temperature range, allows deployment in difficult industrial environments
  • Can measure object temperature between -40 to 300°C
  • A typical target object temperature accuracy of 1°, precision across its full measurement scale
  • NETD of just 0.1K RMS at a 1Hz refresh rate
  • No re-calibration needed to specific temperature requirements ensuring greater convenience and lowering operational expense
  • Two different field of view (FoV) options: standard 55°x35° and 110°x75° wide angle
  • 4-pin TO39 package incorporating the requisite optics
  • I²C compatible digital interface, simplifying integration

Application areas

  • Thermography
  • Thermal imaging technology
  • Building technology
  • Energy efficiency
  • Presence detector
  • Object detection
  • Person detection
  • Climate monitoring
  • Body temperature
  • Fire alarm systems
  • Tyre temperature
  • Defrost function
  • Seat occupancy detection
  • Liquid temperature
  • Motion detection 

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