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ADUX1020 Field of View

On the datasheet, the ADUX1020 has a 120 degree field of view. In our testing, we measured a 60 degree FoV. Can you explain if this is a typo, a mistake, or if the measured angle means something different?

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  • Hello,

    The ADUX1020 standalone chip has a field of view of +/- 60 degrees (120 total). If you're using the evaluation materials (ADUX1020-EVAL-SDP), the LED included on that is the SFH4046, which has a half angle of +/- 22 degrees (44 total) which limits the field of view. Using wider FOV LEDs will allow use of the full range of the sensor. The chip is also partially covered by a black plastic baffle, which may be what is limiting the field of view. The purpose of this baffle is to block light from coupling directly from the LED to the detector on the chip, without interacting with any objects above the sensor. 

    Tyler

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  • Hello,

    The ADUX1020 standalone chip has a field of view of +/- 60 degrees (120 total). If you're using the evaluation materials (ADUX1020-EVAL-SDP), the LED included on that is the SFH4046, which has a half angle of +/- 22 degrees (44 total) which limits the field of view. Using wider FOV LEDs will allow use of the full range of the sensor. The chip is also partially covered by a black plastic baffle, which may be what is limiting the field of view. The purpose of this baffle is to block light from coupling directly from the LED to the detector on the chip, without interacting with any objects above the sensor. 

    Tyler

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