64-channel hyperspectral NIR Sensor
The AS7421 hyperspectral NIR Sensor is a versitile spectrometer-on-chip solution that enables the usage of near infrared detection technology for material or substance detection purposes. The technology enables to: – Identify an object by comparing the measured spectrum with a reference spectrum of an object in a lookup table.
– Derive the composition of a sample by evaluating the measured spectrum with a model (teaching methods)
– Signal the relative changes of concentration of a component of an object
– Signal the properties of an object (end user)
Features:
- 64 channel photodiode matrix
- Spectral range 750-1050nm (61 wavelengths, 5nm separation)
- Integrated NIR LEDs to cover range from 750nm to 1050nm
- Integrated micro optics to limit angle of incidence of sensor (Micro Lens Array)
- 16 independent ADCs with programmable gain and integration time
- Typical integration time for 64 channel is 262ms – I²C interface and interrupt
- Power consumption (typ): 2,5mA active, 2µA sleep
- Module size 6.6 x 6 x 2.2mm (OLGA 10 package)
Applications:
- Reflective object spectral sensor for material analysis in home/industrial applications
- Fabric identification and detection
- Moisture measurements in industrial, home appliance and agricultural applications E.g.: control drying process of grain, coffee beans to monitor quality
- Fruit & foodstuff parameter measurements before and after harvesting
- Floor type and moisture detection of surfaces in home and industrial robotics
