Part Number: PIR325
Function: Infrared Pyroelectric Sensor
Package: TO-5 Type
Manufacturer: Glolab Corporation
Image and Pinouts:
Description:
This is Infrared Pyroelectric Sensor. The PIR325 sensor has two sensing elements connected in a voltage bucking configuration. This arrangement cancels signals caused by vibration, temperature changes and sunlight. A body passing in front of the sensor will activate first one and then the other element as shown in figure 2 whereas other sources will affect both elements simultaneously and be cancelled. The radiation source must pass across the sensor in a horizontal direction when sensor pins 1 and 2 are on a horizontal plane so that the elements are sequentially exposed to the IR source.
Features:
1. With built-in window filter
2. After 72 db amplifier gain
3. At source pin 2 with 5 volts and 100K load
4. Well filtered power supply
Pinout:
1. Drain
2. Source
3. Ground
Specifications and Dimensions :
ELEMENT SIZE 2 x 1, 2 elements
SPECTRAL RESPONSE μm (1) 5 ~ 14
NOISE μVpp 20
OUTPUT mv pp (2) 3900
OFFSET VOLTAGE volts (3) 1.0
SUPPLY VOLTAGE volts (4) 2.5 ~ 15
OPERATING TEMPERATURE ° C -30 ~ 70
STORAGE TEMPERATURE ° C -40 ~ 80
Other data sheets are available within the file: PIR-325
PIR325 Datasheet PDF Download
