The new ToF sensors are AEC-Q100 qualified and suitable for automotive applications including gesture recognition, driver monitoring and people/object detection. The new MLX75024 ToF QVGA sensor doubles the sensitivity of the previous generation while maintaining the same resolution and ambient light robustness. This allows it to operate in lower light levels or reduce the illumination power required by at least 30%. System efficiency is further enhanced by a 50% reduction in current consumption and the resulting lower heat generation allows the design of more compact cameras. A new selectable gain feature allows a trade-off between illumination power, accuracy and ambient light robustness. As a result of these, the SNR is two times better in low light conditions and distances greater than 1m. As an additional improvement, the sensor now integrates an on-chip temperature sensor, reducing system size and cost.
To support the latest MLX75024 QVGA ToF sensor, Melexis has developed the MLX75123BA ToF companion chip, which offers a three-fold improvement in front-end noise over its predecessor. The companion chip is used to configure parameters such as pixel gain, and now supports pixel binning to simplify hardware and software for lower resolution applications. Additionally, the MLX75123BA can support two MLX75024 sensors at the same time.
Melexis also has developed a new BSI VGA sensor. Initial sampling to automotive customers will start early 2019.
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