Addresses growing demands seen across numerous applications for thermal analysis. This infrared (IR) sensor 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.

This device will be available for distributors as from Q2 2018.

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Top Features

  • -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
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Far infrared thermal sensor array (32x24 RES) - MLX90640

Features and benefits

  • -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

Videos

Far infrared (IR) thermal sensor array 32x24 RES

Product

During this demo Joris Roels, Marketing Manager Temperature Sensors, gives more technical details on the thermal infrared sensor and explains its primary applications, including people detection, fire prevention, building automation, lighting control, surveillance and air conditioning systems.

People detection using far infrared (FIR) thermal sensor array

Application

This movie illustrates the use of our people detection sensor, ceiling mounted in an office meeting room.

How field of view for infrared temperature sensors is determined

How to

In this animated video, Robbie Vandeweerdt (Applications Engineer), explains how the field of view or field of vision (abbreviated FOV) for far infrared temperature sensors is determined.

Inspired Engineering

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