The LPS22HHTR is an ultra-compact piezoresistive absolute pressure sensor that functions as a digital output barometer, manufactured by STMicroelectronics.

Features

• Pressure Range: It has an absolute pressure range of 260 to 1260 hPa, which can cover almost all environmental pressure requirements.
• Low Current Consumption: The current consumption can be as low as 4 μA, having little impact on the battery and being especially suitable for applications with strict energy consumption requirements.
• High Accuracy: The absolute pressure accuracy is 0.5 hPa with low pressure sensor noise of 0.65 Pa. It also has a high-performance TCO of 0.65 Pa/°C.
• Embedded Temperature Compensation: This function is very necessary as the external temperature can affect the accuracy of the measurement results in actual use, improving the accuracy of the measurement data.
• High-Resolution Output: It provides 24-bit pressure data output, indicating high resolution in data transmission.
• Adjustable Output Data Rate: The output data rate (ODR) ranges from 1 Hz to 200 Hz, meeting various requirements for data update speeds.
• Multiple Interfaces: It supports SPI, I2C and MIPI I3CSM interfaces, which means it can be easily connected to a variety of microcontrollers.
• Embedded FIFO: The embedded First-In-First-Out (FIFO) buffer can store sensor data, preventing data loss when the microcontroller is busy with other tasks.
• Interrupt Functions: It includes various interrupt functions such as Data Ready, FIFO flags and Pressure Thresholds. These can notify the microcontroller when to read data, enabling more efficient task management.
• Wide Power Supply Voltage Range: The supply voltage ranges from 1.7 V to 3.6 V, which can meet the operating voltage requirements of most microcontrollers.
• High Shock Resistance: It has a high shock resistance of 22,000 g, enabling it to withstand strong shocks that may be encountered in harsh environments.
• Small and Thin Package: It comes in a small and thin HLGA-10L package with dimensions of 2.00 x 2.00 x 0.80 mm.
• Environmental Compliance: It complies with ECOPACK® lead-free standards.

Applications

• Altimeters and Barometers in Portable Devices: It can be used in portable electronic products to provide accurate pressure and altitude information.
• GPS Applications: Assists in improving the accuracy of location and altitude measurement in GPS systems.
• Weather Station Equipment: Measures atmospheric pressure in weather stations for meteorological data collection and analysis.
• Sports Watches: Enables functions such as altitude measurement and recording of ascent and descent speeds in sports watches.
• E-cigarettes: Monitors and controls pressure in e-cigarettes to ensure proper operation.
• Drones: Helps with altitude control and flight attitude adjustment in drones.
• Gas Metering: Used in gas metering equipment to measure gas pressure accurately.