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– December 2022

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STS32/33-DIS

3th Generation, High-Reliability, Certified

Digital Temperature Sensor

Features

• Accuracy ±0.4 °C

• VDD = 2.15 V … 5.5 V

• Low drift, <0.01 °C per year

• Sensor-specific calibration certificate acc. to

ISO 17025:2017, 3-point temp. calibration

• Operating range: −40…125 °C

• True NIST-traceability, unique serial number

• JEDEC JESD47 qualification

• I2C FM, CRC checksum, multip. I2C addr.

• Tiny 8-pin DFN package with ALERT pin

General Description

The STS32/33-DIS are

Sensirion’s new low-drift digital calibrated and ISO17025 certified

temperature sensors. Both rely on the industry proven CMOSens® technology, enabling

increased computational power, reliability and improved accuracy specifications compared to

its predecessors. Its functionality includes enhanced signal processing, two distinctive and user

selectable I2C addresses and communication speeds of up to 1 MHz. The DFN package has

a footprint of 2.5 x 2.5 mm2 while keeping a height of 0.9 mm. Every STS32 or STS33 is

identified by its unique serial number and is supplied with an ISO17025-accredited calibration

certificate. The calibration certificate comprises three temperatures, −30 °C, 5 °C, and 70 °C.

In terms of communication, electrical specifications, and footprint, the SHT33-DIS is fully identical

with the STS3x-DIS.

Device Overview

Functional Block Diagram

Products

Details

STS32-DIS

ISO17025 3-point calibration certificate

accuracy profile 1

STS33-DIS

ISO17025 3-point calibration certificate

accuracy profile 2

Full product list on page 22

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