Sensirion SHT45-AD1B-R2 Temperature and Humidity Sensor 0% to 100% RH -40°C 125°C I2C Digital DFN-4 1.08 V 3.6

Digital humidity and temperature sensor with ultra-high accuracy of ±1.0% RH and ±0.1°C. Building on Sensirion's 20 years long humidity and temperature sensors experience, the SHT45 offers the best accuracy tolerances on the market. Additionally, tape and reel packaging combined with its suitability for standard SMD assembly processes make the SHT45 ideal for high-volume applications. The SHT45 builds on a new and optimized CMOSens® chip offering ultra-low power consumption and industry-leading accuracy specifications. The SHT45 covers operating ranges from 0 to 100% RH and from -40°C to 125°C with accuracies of ± 1.0% RH and �T = ± 0.1°C, ensuring reliable measurement results thanks to its long-term stability and high precision. The exceptionally small size in a robust DFN housing enables integration into challenging designs while meeting the highest reliability demands, as demonstrated by the JEDEC JESD47 qualification.

• Average current of 0.4µA (at meas. rate 1Hz)
• Idle current of 80nA
• Sensirion's CMOSens® technology provides a complete sensor system on a single chip
• Fully calibrated digital I2C fast-mode plus interface (0x44 I2C address)
• Operating range from 0 to 100% RH, -40 to 125°C
• Fully functional in condensing environment
• Integrated high-power heater
• NIST traceability
• Used in measurement equipment, high-end lab equipment, precision hygro-logger, high-end thermostats
• 1.08V to 3.6V extended supply voltage range, perfectly suited for the most demanding applications

Other details

Brand	SENSIRION
Part Number	SHT45-AD1B-R2
Quantity	Each (Supplied on Cut Tape)
Technical Data Sheet EN
Declaration of Conformity EN
Handling Instructions EN
User Manual EN
Manufacturer Catalogue EN
Application Note 4 EN

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