Thermopile infrared sensor TPiS 1S 1385 CaliPile®

Product Overview
The Excelitas CaliPile Sensor TPiS 1S 1385 is a multifunction thermopile infrared (IR) sensor in an ultra-compact SMD package. It integrates thermopile sensing, on-board signal processing and digital output to enable presence/motion detection and short-range temperature measurement from a single component. Near-distance sensing up to ~3 m is possible without additional lensing; for higher dynamic range and longer-range temperature sensing consider the TPiS 1S 0185.

Device Description
The TPiS 1S 1385 CaliPile SMD combines a high-sensitivity thermopile chip with internal electronics for conversion, filtering and processing. It provides an I2C interface with hardware-configurable address and an interrupt pin usable as a binary event output (presence, motion, over-temperature). The SMD package (4.4×2.6×1.75 mm) is suited to space-constrained integrations; TO-package variants with windows or lenses are available for extended-range applications.

CaliPile SMD Features

• 4.4 × 2.6 × 1.75 mm ceramic SMD package
• High-sensitivity thermopile with 120° field-of-view
• Integrated low-power signal processing (~50 µW)
• I2C interface with hardware-configurable address
• Factory calibration data for ambient and object temperature sensing
• Interrupt function for presence, motion and over-temperature events

CaliPile SMD Applications

• Space-efficient integration in smart-home and IoT devices
• Wake-up sensors for battery-powered thin devices
• Near-field human motion and presence detection
• Far-field detection when used with lensed/TO variants
• Short-range temperature measurement and fast over-temperature protection

Specifications

• Operation voltage: 2.6–3.6 V
• Sensitivity S40: 400 counts/K (75 counts/K for TPiS 1S 0185)
• Noise: 8 counts/K
• Time constant: 30 ms (15 ms for TPiS 1S 0185)
• Package dimensions: 4.4 × 2.6 × 1.75 mm ceramic SMD
• Field of view: 120°
• Integrated low-power signal processing (~50 µW)
• I2C interface with hardware-configurable address and interrupt output
• Factory calibration for ambient and object temperature sensing