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New Sensor Technologies for Next-Gen Temperature Measurement

Melexis recently announced two new sensing technologies for next-generaration temperature measurement. The MLX90640 sensor array is an alternative to high-end thermal cameras. The MLX90342 is a quad thermocouple interface that addresses automotive sensing to 1300ºC.

The MLX90640 IR sensor arrays benefits, characteristics, and specs:

  • 32 × 24 pixels
  • –40° to 85°C operational temperature range; measures object temperatures from 240°C and 300°C
  • ±1°C target object temperature accuracy
  • Noise equivalent temperature difference (NETD) of 0.1K RMS at a 1-Hz refresh rate
  • Doesn’t require frequent recalibration
  • Field-of-view (FoV) options: 55° × 35° version and 110° × 75° wide-angle version
  • Compact, four-pin TO39 package incorporating the requisite optics
  • I2C-compatible digital interface
  • Target applications: fire prevention systems, HVAC equipment, smart buildings, and IP/surveillance systemsMLX90342 Melexis

The MLX90342 high-performance quadruple thermocouple interface benefits, characteristics, and specs:

  • Supports a –40° to 1300°C thermocouple temperature range
  • Operating temperature specification of –40° to 155°C
  • On-board cold junction compensation and linearization
  • Factory calibration; guaranteed intrinsic accuracy of ±5°C at 1100°C.
  • 26-pin 6 mm × 4 mm QFN package
  • 50-Hz Rapid refresh rate
  • Temperature data can be transmitted via a SENT Revision 3 digital interface
  • Target applications: turbo charger temperature control, exhaust gas recirculation, and diesel/gas particle filtering systems

Source: Melexis


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