Pyroelectric Infrared Sensor


Pyroelectric Infrared Sensor

Home > Products > Pyroelectric Infrared Sensor > Digital Intelligent PIR Sensor AL412

Digital Intelligent PIR Sensor AL412

Overview

The product is a type of  intelligent PIR sensor which integrates digital circuit and sensitivity element in a hermetically sealed package. It interfaces directly with up two conventional PIR sensor via a high impedance differential input. The PIR signal is converted to a digital value on chip . A REL output indicates whenever the PIR signal is above the selected threshold . The parameters for timing is set by connecting the corresponding inputs to DC voltages. All siganal processing is performed digitally.

Feature

Digital signal processing, no drift and aging

High power supply rejection ratio, anti-radio frequency interference(mobile phone, WiFi, etc.)

A second-order Butterworth bandpass filter with built-in infrared sensor to shield input interference at other frequencies

Ontime adjustable

Good stability and effective suppression of repeated malfunctions

Low power consumption and simple application circuit







Datasheet

1.Technical data

Parameter

Symbol

Min

Max

Unit

Remarks

Operating Temp

TST

-30

70


Current into any pin

Into

-100

100

mA


Storage Temp

TST

-40

80


2.Operating Conditions (T=25°C, Vdd=3Vunless stated otherwise)

Parameter

Symbol

Min

Type

Max

Unit

Remarks

Regular voltage

VDD

2.7

3

3.3

V


Supply current

IDD

9

12

15

μA


Sensitivity threshold

VSENS


100


μV


Detective Wavelength

λ

5


14

um


Outputs REL

Output current low

IOL

10



mA

VOL<1V

Output current high

IOH

-10



mA

VOH>(VDD-1V)

Low REL output locking time

TOL


2


s

Non-adjustable

High REL output delay time

TOH

2


3600

s


Inputs ONTIME

Input voltage range


0


VDD1/2

V

Adjustable between 0V and VDD/2

Input leakage current


-1


1

μA


Oscillator and Filter

LPF cutoff frequency




7

Hz


HPF cutoff frequency




0.44

Hz


On chip oscillator frequency

FCLK



64

kHz



Related Products

        

        
Contact Us

Tel.: +86-755-82594732

E-mail: sales.sz@nysenba.com

E-mail: sales.sz@nysenba.com

Stay in Touch

Get the latest on sales, new releases and more!

Send

Follow Us

Copyright © SENBA Sensing Technology Co., Ltd. All Rights Reserved | Sitemap

SENBA Sensing Technology Co.,Ltd., was founded in 2005, with the focus on producing the top quality photoelectric components, such as PIR sensors, Photoresistors,Light Sensors, Flame detectors etc. Our strategic goal is to master the core technology.