Overview
The Infineon DPS310XTSA1 is a miniaturized digital barometric air pressure sensor designed for high accuracy and low current consumption. This sensor is part of Infineon's XENSIV™ product line and is particularly suited for portable devices and wearable applications. It measures both pressure and temperature with high precision, making it ideal for various mobile and IoT applications. The sensor uses a capacitive sensing principle to ensure high accuracy during temperature changes and is individually calibrated with stored calibration coefficients for precise measurement results.
Key Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage Range | 1.7V to 3.6V (VDD), 1.2V to 3.6V (VDDIO) |
| Operation Range | Pressure: 300 – 1200 hPa, Temperature: -40°C to 85°C |
| Pressure Sensor Precision | ± 0.002 hPa (high precision mode) |
| Relative Accuracy | ± 0.06 hPa |
| Absolute Accuracy | ± 1 hPa |
| Temperature Accuracy | ± 0.5°C |
| Pressure Temperature Sensitivity | 0.5 Pa/K |
| Measurement Time | Typical: 27.6 ms (standard mode), Minimum: 3.6 ms (low precision mode) |
| Average Current Consumption | 1.7 µA (pressure measurement), 1.5 µA (temperature measurement) @ 1Hz sampling rate, Standby: 0.5 µA |
| Operating Modes | Command (manual), Background (automatic), and Standby |
| Calibration | Individually calibrated with coefficients for measurement correction |
| FIFO | Stores up to 32 pressure or temperature measurements |
| Interface | I2C and SPI (both with optional interrupt) |
| Package Dimensions | 8-pin LGA, 2.0 mm x 2.5 mm x 1.0 mm |
Key Features
- High accuracy and stability with temperature changes
- Low current consumption
- Miniaturized 8-pin LGA package
- Capacitive sensing principle for high precision
- Individually calibrated with stored calibration coefficients
- Supports I2C and SPI interfaces with optional interrupt
- FIFO stores up to 32 measurement results
- Multiple operating modes: Command, Background, and Standby
Applications
- Wearable applications and sport/fitness activities tracking
- Drones for automatic pilot and fix-point flying
- Indoor navigation, including floor detection in shopping malls and parking garages
- Health and sports applications for accurate elevation gain and vertical speed measurement
Q & A
- What is the supply voltage range for the DPS310XTSA1?
The supply voltage range is 1.7V to 3.6V (VDD) and 1.2V to 3.6V (VDDIO). - What is the operating pressure range of the DPS310XTSA1?
The operating pressure range is 300 – 1200 hPa. - What is the precision of the pressure sensor in high precision mode?
The precision is ± 0.002 hPa. - What is the relative accuracy of the pressure measurement?
The relative accuracy is ± 0.06 hPa. - How accurate is the temperature measurement?
The temperature accuracy is ± 0.5°C. - What are the typical measurement times for the DPS310XTSA1?
Typical measurement time is 27.6 ms (standard mode), and minimum measurement time is 3.6 ms (low precision mode). - What are the average current consumption values for the DPS310XTSA1?
Average current consumption is 1.7 µA for pressure measurement, 1.5 µA for temperature measurement @ 1Hz sampling rate, and 0.5 µA in standby mode. - What interfaces does the DPS310XTSA1 support?
The DPS310XTSA1 supports I2C and SPI interfaces, both with optional interrupt. - What is the package type and dimensions of the DPS310XTSA1?
The package type is 8-pin LGA, with dimensions of 2.0 mm x 2.5 mm x 1.0 mm. - Is the DPS310XTSA1 individually calibrated?
Yes, the DPS310XTSA1 is individually calibrated with stored calibration coefficients for precise measurement results.
