Thermopile temperature sensor TPiS 1S series

SMDdigitalfor surface temperature measurement

Overview
The Excelitas TPiS 1S 1051 and TPiS 1S 1252 DigiPile™ series are compact SMD digital thermopile sensors combining a thermopile sensing chip with an internal ADC to deliver amplified 17-bit digital output and an internal temperature reference.

Product details
Both models use Excelitas's ISOthermal design to optimize signal stability and minimize thermal drift. The digital bit stream contains the thermopile measurement followed by the internal reference diode reading for accurate temperature compensation. The TPiS 1S 1051 pairs the smallest thermopile chip with the smallest available SMD housing, while the TPiS 1S 1252 provides higher sensitivity in a slightly larger integrated package. Digital conversion reduces susceptibility to electrical interference and simplifies integration into embedded systems.

Features

• Digital 17-bit thermopile output (Tobj)
• 14-bit internal ambient (Tamb) output
• Integrated ADC and internal temperature reference diode
• Low operating voltage (down to 2.4 V)
• Low current consumption suitable for battery-powered devices
• Compact SMD package with optical window (3×3 mm)

Applications

• Non-contact temperature measurement and monitoring
• Industrial and laboratory thermometry integration

Characteristics / Technical specifications

• Operating voltage: 2.4–3.6 V
• Sensitivity S100: ~280 counts/K
• Noise: ~8 counts/K
• Response time (time constant): ~15 ms
• Housing with optical window: SMD 3×3 mm
• Field of view: 120°