Infineon Technologies DPS310 Digital Pressure Sensor

Infineon DPS310 Digital Pressure Sensor is a tiny barometric air pressure sensor with a high accuracy and a low current consumption. The sensor is capable of measuring pressure and temperature and is based on a capacitive sensing principle. This guarantees high precision during temperature changes. Infineon DPS310's small package makes the sensor 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, 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.

Features

300hPa to 1200hPa operation pressure range
-40°C to +85°C operating temperature range
±0.005hPa (or ±0.05m) (high precision mode) pressure sensor precision
±0.06hPa (or ±0.5m) relative accuracy
±1hPa (or ±8m) absolute accuracy
±0.5°C temperature accuracy
0.5Pa/K pressure temperature sensitivity
Measurement time:
- 27.6ms typical for standard mode (16x)
- 3.6ms minimum for low precision mode
2mm x 2.5mm x 1mm 8-pin LGA package
Green Product (RoHS) compliant

Average current consumption:
- 1.7μA for pressure measurement
- 1.5uA for temperature measurement @1Hz sampling rate
- 0.5μA at standby
1.2V to 3.6V V_DDIO and 1.7V to 3.6V V_DD supply voltage
Command (manual), Background (automatic), and Standby operating modes
Individually calibrated with coefficients for measurement correction
FIFO Stores up to 32 pressure or temperature measurements
I²C and SPI (both with optional interrupt) interfaces

Applications

Indoor navigation (floor detection e.g. in shopping malls and parking garages)
Health and sports (accurate elevation gain and vertical speed)
Outdoor navigation (GPS start-up time and accuracy improvement, dead-reckoning e.g. in tunnels)