NS312

NS312 Product Introduction

NS312 is a type of PIR sensor which integrates a digital control circuit and a human detection sensor in an electromagenetic shielding housing.The human body detection sensor couples the sensed human movement signal to the digital intelligent integrated circuit chip through a very high impedance differential input circuit, and the digital intelligent integrated circuit converts the signal into an ADC digital signal, and all signal processing is done on the chip.

NS312 Product Features

• Digital signal output
  

• Low power consumption、Low voltage ,Short warm-up time

• High power supply rejection ratio, anti-RF interference

• The second-order Butterworth bandpass filter with built-ininfrared sensor shields input interference at other frequencies

• Good stability, effective suppression of repetitive misoperations

• The application circuit is simple

• Timing time 2S output
  

NS312 Technical Data

1. Absolute Maximum Ratings

Electrical characteristics (beyond those listed below may cause permanent damage to the device. Exposure to absolute maximum ratings may affect the device reliability.)

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 Condition (T=25°C, VDD=3V, unless stated otherwise)

Parameter	Symbol	Min	Typ	Max	Unit	Remarks
Regular voltage	VDD	2.7	3	3.3	V
Operation current	IDD	9	12	15	μA
Sensitive threshold	VSENS		100		μV
Detective wavelength	λ	5		14	μm
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	Not adjustable
High REL output locking time	TOH		2		s
Oscillator and filter
LPF cutoff frequency				7	Hz
HPF cutoff frequency				0.44	Hz
On-chip oscillator frequency	FCLK			64	kHz

   

NS312 Product Specification Document

Access detailed technical information, configuration guides, and solutions notes to support your evaluation and implementation of the SB-2023 Series.

• Product Datasheet

  Complete technical specifications, performance curves, dimensional drawings, and ordering information.

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• Product Datasheet

  Complete technical specifications, performance curves, dimensional drawings, and ordering information.

  Download
• Product Datasheet

  Complete technical specifications, performance curves, dimensional drawings, and ordering information.

  Download