AS7421 64-Channel Hyperspectral NIR Sensor

Product Highlights > AS7421 64-Channel Hyperspectral NIR Sensor

            AS7421 64-Channel Hyperspectral NIR Sensor
                    ams OSRAM's sensors feature a 64-channel photodiode matrix
    

ams OSRAM's AS7421 hyperspectral NIR sensor is a versatile spectrometer-on-a-chip solution that enables near-infrared detection technology for material or substance detection purposes. The technology enables the identification of an object by comparing the measured spectrum with a reference spectrum of an object (say in a lookup table). The sensor can be used to derive the composition of a sample by evaluating the measured spectrum. It can also be used to detect relative changes in the concentration of a component of an object (water for example).

Features

64-channel photodiode matrix
Spectral range: 750 nm to 1050 nm (61 wavelengths with 5 nm separation)
Integrated NIR LEDs to cover a range from 750 nm to 1050 nm
Integrated micro-optics to limit the angle of incidence of the sensor (micro-lens array)

16 independent ADCs with programmable gain and integration time
Typical integration time for 64 channel is 262 ms: I²C interface and interrupt
Power consumption (typ): 2.5 mA active, 2 µA sleep
Module size 6.6 mm x 6 mm x 2.2 mm (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 such as controlling the drying process of grain or coffee beans to monitor quality
Fruit and foodstuff parameter measurements before and after harvesting
Floor-type and moisture detection of surfaces in home and industrial robotics