Thermopile infrared sensor TPiS 1T 1252B

for portable infrared thermometer

Overview
Excelitas' TPiS 1T 1252B DigiPile Sensor integrates a thermopile sensing element with an internal ADC for on‑chip amplification and digital conversion. Housed in a Special TO-46 type package with the patented ISOthermal design, it delivers improved stability under thermal shock and simplified digital interfacing for industrial and medical integrations.

Details
The TPiS 1T 1252B DigiPile features a thermopile detector with a native 17‑bit Tobj digital output and a 14‑bit Tamb channel. The serialized bitstream includes the thermopile signal followed by an internal temperature reference diode reading, enabling precise object temperature calculation. The digital output reduces susceptibility to electrical noise and eases system integration across microcontroller and ADC architectures.

Features

• Digital output sensor with on‑chip ADC
• 17‑bit Tobj direct output
• 14‑bit Tamb direct output (internal reference)
• Operating voltage: down to 2.4 V (typ. 2.4–3.6 V)
• Low current consumption for battery‑sensitive applications
• Isothermal TO‑46 sensor housing (ISOthermal)
• Field of view: 84°; Time constant: 30 ms

Typical Applications

• Ear thermometry (tympanic thermometers)
• General purpose non‑contact thermometry and temperature monitoring

Technical specifications

• Operation Voltage: 2.4–3.6 V
• Sensitivity S40: 290 Counts/K
• Noise: 8 Counts/K
• Time Constant: 30 ms
• Housing with optical window: TO‑46 type
• Field of View: 84°