HTU11F Temperature Humidity Integrated Sensor Miniature Size And Extremely Low Power Consumption

1.Overview:

The HTU1x (F) series is a miniature digital temperature - humidity integrated sensor series. Based on Humirel's high - performance humidity - sensing elements, the HTU1x (F) series modules provide accurate and reliable temperature and humidity measurement data for OEM applications. The sensor integrates the sensing element and the signal processing circuit on a miniature circuit board, and outputs a fully calibrated digital signal.

2. Features:

• Complete interchangeability, no need for calibration in standard environment.
• Can quickly recover from long - term condensation state.
• Manufactured from lead - free materials, suitable for reflow soldering.
• Each sensor has a unique mark for traceability of the production source.
• Miniature size and extremely low power consumption.

3. Performance Specifications:

• Power Supply Voltage: The peak value is 3.6Vdc, and the recommended operating voltage range is 3.2V - 3.4V.
• Humidity Measurement Range: 0 to 100%RH.
• Temperature Measurement Range: - 40 to 105℃.
• Maximum Power: 2.5mW.
• Humidity Measurement Accuracy: ±3.5%RH (HTU11F) in the range of 10 - 95%RH.
• Temperature Measurement Accuracy: ±0.4℃ at 25℃.
• Resolution: 12 - bit resolution for humidity, 0.05%RH; 14 - bit resolution for temperature, 0.01℃.
• Measurement Time: 110ms for 12 - bit humidity measurement, 210ms for 14 - bit temperature measurement.
• Response Time: The humidity response time is 5 - 10s, and the temperature response time is 10s.

4. Electrical Characteristics:

• Current Consumption: At T = 25℃ and Vdd = 3.3V, the typical value is 250μA, and the maximum value is 700μA.
• Communication Interface: Digital two - wire interface.

5. Pin Definition:

• GND: Power ground.
• DATA: Serial data port, bidirectional.
• SCK: Serial clock, input - only.
• VDD: Power input. A 100nF capacitor should be added between VDD and GND for decoupling and filtering.