Digital Smart PIR Sensor AM412

AM412 is a digital intelligent PIR sensor. It interfaces directly with up to two conventional PIR sensors via a high impedance differential input. The PIR signal is converted to a 15 bit digital value on chip. A LED output indicates whenever the PIR signal is above the selected threshold. The parameters for sensitivity and timing are set by connecting the corresponding inputs to DC voltages. The voltage levels on the inputs are converted to digital values with 7 bit resolution. All signal processing is performed digitally.

Features

Digital signal processiing(DSP)
Power adjustable, save more energy
Two-way differential high impedance sensor input and temperature compensation
Built-in filter, screen the interference by other frequency
Exellent power supply rejection, Insensitive to RF interference
Schmidt REL output
Low voltage, low power consumption, instantaneous settling after power up