EG4002 Datasheet PDF – Pyroelectric Infrared Sensor – EG

Part Number: EG4002, EG4002A ~ EG400G

Function : Infrared Pyroelectric Special Chip

Package: SOP 8, DIP 8

Manufacturer: EG Micro


This is PIR Controller

The EG4002 is a dedicated analog-to-digital mixed-signal IC for signal amplification and processing of pyroelectric infrared sensors. It integrates operational amplifiers, dual threshold voltage comparators, reference voltage sources, delay time and blocking time timers, and State controller, dedicated to anti-theft alarm system, the human body door control devices, lighting control switches and other occasions.

The EG-4002 power supply operating voltage of +3 V ~ +6 V, the use of COMS process mixed digital-analog integrated circuits, 8-pin package design, reducing the number of external circuit components and the overall cost, saving PCB board space.






1. 8 pin-pin dedicated pyroelectric chip, the external circuit is simple, low cost

2. Static power consumption is small, 3V power supply when the power is less than 45uA, 5V power supply when the power consumption is less than 75uA, ideal for battery-powered system applications

3. High input impedance operational amplifier, with a variety of sensor matching, signal and processing

4. Two-way discriminator, can effectively suppress interference

5. Built-in reference voltage for internal comparator and operational amplifier reference voltage

6. Built-in delay time timer and blocking time timer, change the oscillator frequency can be set to delay time

7. Little external components, only the first-class op amp configuration gain and oscillator RC devices that can work reliably

8. Power supply + 3V ~ + 6V


Application Circuit :



EG4002 Datasheet PDF


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LM35 Datasheet PDF – LM35DZ – Temperature Sensor

Part Number: LM35

Function: LM35 Precision Centigrade Temperature Sensor

Package: TO-92 Type

Manufacturer: Texas Instruments

LM35 Pinout

LM35 pinout image


The LM35 series are precision integrated-circuit temperature sensors, with an output voltage linearly proportional to the Centigrade temperature. Thus the LM35 has an advantage over linear temperature sensors calibrated in ° Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scaling.

The LM35 device does not require any external calibration or trimming to provide typical accuracies of ±¼°C at room temperature and ±¾°C over a full −55°C to 150°C temperature range. Lower cost is assured by trimming and calibration at the wafer level. The low-output impedance, linear output, and precise inherent calibration of the LM35 device makes interfacing to readout or control circuitry especially easy. The device is used with single power supplies, or with plus and minus supplies.

Application Circuits :

LM35 Datasheet



• Calibrated Directly in ° Celsius (Centigrade)
• Linear + 10 mV/°C Scale Factor
• 0.5°C Ensured Accuracy (at +25°C)
• Rated for Full −55°C to +150°C Range
• Suitable for Remote Applications
• Low Cost Due to Wafer-Level Trimming
• Operates from 4 to 30 V
• Less than 60-μA Current Drain
• Low Self-Heating, 0.08°C in Still Air
• Nonlinearity Only ±¼°C Typical
• Low Impedance Output, 0.1 Ω for 1 mA Load



• Power Supplies
• Battery Management
• Appliances


LM35 Datasheet PDF Download

LM35 pdf

Other data sheets are available within the file: LM35AH, LM35AH/NOPB, LM35CAH, LM35CAH/NOPB

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