Infineon Technologies' DPS310XTSA1 is a miniaturized digital barometric air pressure sensor with high accuracy, high stability, and low current consumption. The pressure sensor is capable of measuring both pressure and temperature. The pressure sensor element is based on a capacitive sensing principle which guarantees high precision during temperature changes. The 8-pin LGA package makes the DPS310XTSA1 ideal for mobile applications and wearable devices. The internal signal processor converts the output from the pressure and temperature sensor elements to 24-bit results. Each unit is individually calibrated and the calibration coefficients calculated during this process are stored in the calibration registers. The coefficients are used in the application to convert the measurement results to high accuracy pressure and temperature values. They can store up to 32 measurement results, allowing for a reduced host processor-polling rate. Sensor measurements and calibration coefficients are available through the serial I2C or SPI interface. The measurement status is indicated by status bits or interrupts on the SDO pin.
Feature
- Operation range: Pressure: 300 -1200 hPa. Temperature: -40 - 85 °C
- Pressure sensor precision: ± 0.005 hPa (or ±0.05 m) (high precision mode)
- Relative accuracy: ± 0.06 hPa (or ±0.5 m)
- Absolute accuracy: ± 1 hPa (or ±8 m)
- Temperature accuracy: ± 0.5°C
- Pressure temperature sensitivity: 0.5Pa/K
- Measurement time: Typical: 27.6 ms for standard mode (16x). Minimum: 3.6 ms for low precision mode
- Average current consumption: 1.7 µA for Pressure Measurement, 1.5uA for Temperature measurement @1Hz sampling rate, Standby: 0.5 µA
Applications
- Wearable applications, sport and fitness activities tracking
- Drones automatic pilot, fix point flying
- Indoor navigation, altitude metering
