HTS221TR

The HTS221TR is a digital humidity and temperature sensor manufactured by STMicroelectronics. It is designed for a wide range of applications, including environmental monitoring, HVAC systems, and consumer electronics. The sensor is compact and features a small footprint, making it suitable for integration into various devices.

Key Features:

1. Measurement Range:

   • Humidity: The HTS221TR can measure relative humidity from 0% to 100%, providing accurate readings across a wide range of environmental conditions.
   • Temperature: It measures temperature from -40°C to +120°C, allowing it to function effectively in both indoor and outdoor applications.

2. Accuracy:

   • The sensor offers high accuracy for both humidity and temperature measurements. Humidity accuracy is typically around ±3% RH, while temperature accuracy is around ±0.5°C.

3. Digital Output:

   • The HTS221TR communicates via I2C or SPI digital interfaces, making it easy to integrate with microcontrollers and other digital systems. This digital output ensures reliable data transmission and reduces the impact of noise.

4. Low Power Consumption:

   • The sensor is designed for low power operation, making it ideal for battery-powered devices. It features a low-power mode that can be activated to further reduce energy consumption.

5. Built-in Calibration:

   • The HTS221TR comes with built-in calibration, which simplifies the design process and ensures consistent performance over time. This feature helps maintain accuracy without the need for extensive external calibration.

6. Compact Size:

   • The sensor is housed in a small LGA (Land Grid Array) package, typically measuring around 3mm x 3mm x 1mm. This compact design allows for easy integration into space-constrained applications.

7. Operating Conditions:

   • The HTS221TR is designed to operate in a wide range of environmental conditions, with a supply voltage range of 1.7V to 3.6V, making it versatile for various power supply configurations.

8. Applications:

   • Common applications include weather stations, smart home devices, industrial automation, and portable consumer electronics. Its ability to provide real-time environmental data makes it valuable for applications requiring precise climate control.

Conclusion:

The HTS221TR from STMicroelectronics is a highly versatile and reliable digital humidity and temperature sensor. Its combination of accuracy, low power consumption, and compact design makes it an excellent choice for a variety of applications where environmental monitoring is essential. With its digital output and built-in calibration, it simplifies integration into modern electronic systems, making it a popular choice among engineers and developers.