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Infrared Image Sensors (ML8540WD)

Easy Obtaining of Thermal Images

The ML8540WD is a medium-resolution (approximately 2,000 pixels) infrared image sensor from ROHM, that allows non contact temperature measurement of an object and easy obtaining of thermal images.

The ML8540WD receives infrared rays from an object at 48 × 47 (2,256) pixels resolution, converts them into voltage through a thermopile and selects pixels in accordance with external CPU clocks to output signals.


  • A simple-to-use infrared image sensor for taking thermal images at 2000 pixels.
  • Uncooled, small and low power consumption.
ML8540WD-Infrared-Image-Sensor-Layout ML8540-Infrared-Image-Sensor-Device-Structure




  • 2D radiation thermometers
  • Body temperature control (Health monitors)
  • Air conditioner control
  • Surveillance cameras and security sensors
  • Industrial-use temperature monitoring


Application Examples:




Pixel selection is made with a clock signal output from customer’s host CPU. This allows thermal images to be easily obtained by capturing an amplified signal with host ADC and performing additional signal processing.



 Parameter  Specification
 Part No.  ML8540WD (Under development)
 Power Supply Voltage  5V
 Operating Temperature -30 to +85°C 
 Number of Pixels  48×47 (2,256)  pixels
 Temperature Resolution  0.5°C (Without lens)
 Framerate  6fps
 Operating Current (typ.)  5mA


For further information regarding our Infrared Image Sensors please contact:

This e-mail address is being protected from spambots. You need JavaScript enabled to view it , +44 (0) 1342 717102.

Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, UK

Tel: +44 (0) 1342 717102, Email:

CORPORATE: Solid State Group

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