VL6180X sensor is made with the ST’s IMG175 imaging silicon process. The device has an integrated laser and an IR-pass filter included on the device. The conventional three-chip system, usually is made with standard technology, 8-inch, 0.18 micron and 0.25 micrometers. It is as stated meaning three devices, an LED diode, LED driver and LED which are not integrated. The VL6180X ambient light sensing system, uses the same process technology as ST’s image sensors. It has a photopic filter on the ALS sensor ensuring that it only catches the light that is relevant to the human eye. There is an IR-cut filter so IR light does not affect the IR ALS measurement. Competitor devices do not have this IR cut filter or integrated packaging which means the integration of a conventional ALS is much more complex requiring filters that are not included in the device. The VL6180X has an integrated 8-bit microcontroller for self-sufficient operation, including ROM and one-time programmable memory. The NVM stores device parameters that could be loaded upon boot-up. VL6180X does not have memory for storing customer-specific settings. Competitor devices rely on the HOST application processor to complete measurements and in some cases require an ADC converter. The VL6180X is integrated with optical packaging which is factory calibrated. The conventional IR solution is usually separate chips that need to be integrated onto one PCB. IR proximity devices usually are not factory-calibrated, which is required by the end customer.