Method of characterizing an optical sensor chip, method of calibrating an optical sensor chip, method of operating an optical sensor device, optical sensor device and calibration system

A method of calibrating an optical sensor chip, wherein the optical sensor chip is integrated into an optical sensor device, the method comprising:

• providing an unambiguous chip identification number, chip ID, to identify the optical sensor chip,
• retrieving sensor response data using the chip ID, wherein the sensor response data is saved together with the chip ID as a data bank entry in a database, and wherein the sensor response data is a function of wavelength and operating temperature,
• providing a calibration algorithm associated with the chip ID,
• measuring an operating temperature of the optical sensor device,
• measuring a sensor output of the optical sensor chip at the measured operating temperature, and
• calibrating the sensor output using the retrieved sensor response data, the calibration algorithm and the operating temperature.

An optical sensor device, comprising:

• a host system,
• a temperature sensor to a measure an operating temperature of the optical sensor device,
• an optical sensor chip referenced with an unambiguous chip identification number, chip ID,
• a memory to save the sensor response data and the calibration algorithm associated with the chip ID, and
• a processing unit to access the memory using the chip ID and to process a calibration of a sensor output of the optical sensor chip using the calibration algorithm, the sensor response data and the operating temperature.