The AFBR-S6EPY32271R from Broadcom is a Pyroelectric Extended Infrared Detector that operates at a wavelength above 5 μm. It has a field of view of 40o and specific detectivity of 2.5 x 108 cm.sqrt(Hz)/W. This thin film pyroelectric detector has a noise-equivalent power of 2.7 x 10-10 W/sqrt(Hz) and time constant of 10 ms (at 10-20 Hz peak). It has a filter range of 9.5 µm and filter bandwidth of 400 μm. This pyroelectric detector has an element size of 0.64 mm x 0.64 mm and aperture size diameter of 1.65 mm. It has a 15-bit ADC and can be controlled via an I2C (FM+compatible) digital I/O interface.
The AFBR-S6EPY32271R has a current mode sensor readout and is gain/digital filtering/sampling rate/power modes configurable. It requires a DC supply voltage of 1.75 V - 3.6 V and consumes a current of 1 μA - 23 μA. This pyroelectric detector is available in an SMD package that measures 5.65 mm x 3.7 mm x 1.75 mm and is ideal for gas sensing (CO2, CO, CH4, NO, anaesthetics, refrigerants, exhaust gases, etc.), flame detection (CO2 and H2O gases from hydrocarbon or hydrogen flames), food and oil analysis (sugars, proteins, fats, base, and acidic numbers), motion detection, and gesture recognition applications.
