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Infrared Image Sensor ML8540WD
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Infrared Image Sensor ML8540WD
Infrared Image Sensor
ML8540WD
The ML8540WD is a medium-resolution (approximately 2,000 pixels) infrared image sensor that allows noncontact 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. The built-in op-amp circuit amplifies the infinitesimal voltage of the thermopile for conventional output signal level. Furthermore, the temperature sensor circuit is used to output a temperature-compensated signal by measuring the chip temperature.


  • 2D radiation thermometers

  • Body temperature control (Health monitors)

  • Air conditioner control

  • Surveillance cameras and security sensors

  • Industrial-use temperature monitoring



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.




ParameterSpecification
Part No.ML8540WD
Power supply voltage5V
Operating temperature-20 to +70°C
IR sensor48×47(2,256) pixels
Measurement range*:
-30 to 60°C (10bit)
-30 to 300°C (12bit)
*Depends on ADC resolution
Peripheral circuitTemperature sensing circuit, Amp., Reference power supply
Temperature resolution0.5°C
Readout rate4 frames per second
Operating current (typ.)<5mA with peripheral circuit in use
<1mA with peripheral circuit not in use

Note: Wafer sales only

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