MLX90621 16 x 4 Pixel Thermal Imager

Melexis offers their MLX90621 thermal imager with a programmable frame rate of 0.5 Hz to 512 Hz

Image of Melexis' MLX90621 16 x 4 Pixel Thermal ImagerMelexis' MLX90621 is a 16X4 array of pixels sensitive to thermal infrared radiation. It has improved considerably on speed and temperature resolution (x4) compared to the previous generation product. Optional versions are available with fields-of-view matching previous generations of IR array sensors (60° x 15° and 40° x 10°).

The improved field-of-view enables a single MLX90621 sensor to measure temperature profiles of both passenger and driver from a single position on the center-stack of the dashboard. In a room air-conditioning system it was previously necessary to mount the sensor on a stepper-driven mechanical scanner to sweep the scene and provide a full view of the area in front of the cooling appliance. The expanded field-of-view eliminates the need for mechanical scanning and replaces it with a single, fixed sensor able to image the necessary area directly. The resulting reduction in cost, measurement time, and system complexity provide options and markets for cooling appliance designers.

The MLX90621 delivers unmatched noise versus speed performance providing 0.4 K noise equivalent temperature difference (NETD) at 16 Hz. It is available in small size, TO-39 metal can package for a cost-effective 16 x 4 pixel thermal array. Factory-calibrated to operate over a wide temperature range of -40°C to 85°C for sensor temperature, it can measure object temperatures over the range of -20°C to 300°C. The device is available in three field-of-view options including 30° x 120°, 60° x 15°, or 40° x 10°. Interface and control is managed via high-speed I2C digital interface. The speed is programmable from a frame rate of 0.5 Hz to a frame rate of 512 Hz.


  • Unmatched noise versus speed performance: 0.4 K NETD at 16 Hz
  • Small size, cost-effective, 16 x 4 pixel thermal array
  • Factory calibrated in wide temperature range: -40°C to 85°C for sensor temperature and -20°C to 300°C for object temperature
  • Three field-of-view options: 30° x 120°, 60° x 15°, or 40° x 10°
  • High-speed I2C digital interface for fast data transfer
  • Programmable frame rate of 0.5 Hz to 512 Hz

MLX90621 16 x 4 Pixel Thermal Imager

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
MLX90621ESF-BAB-000-TU datasheet linkSENSOR DGTL -40C-85C TO39MLX90621ESF-BAB-000-TUSENSOR DGTL -40C-85C TO391306 - Immediate
MLX90621ESF-BAB-000-TU product page link
MLX90621ESF-BAA-000-SP datasheet linkSENSOR DGTL -40C-85C TO39MLX90621ESF-BAA-000-SPSENSOR DGTL -40C-85C TO39186 - Immediate
MLX90621ESF-BAA-000-SP product page link
MLX90621ESF-BAD-000-SP datasheet linkSENSOR DGTL -40C-85C TO39MLX90621ESF-BAD-000-SPSENSOR DGTL -40C-85C TO390MLX90621ESF-BAD-000-SP product page link

MLX90621 16 x 4 Pixel Thermal Imager Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
EVB90621 datasheet linkBOARD EVALUATION FOR MLX90621EVB90621BOARD EVALUATION FOR MLX9062147 - Immediate
EVB90621 product page link
Published: 2015-12-07