DPS422

Summary of Features

• Package dimensions: 8-pin LGA, 2.0 x 2.5 x 0.73 mm (typ)
• Operation range: Pressure: 300 –1200 hPa. Temperature: -40°C – +85 °C
• Pressure sensor precision: ± 0.005 hPa (or ±5 cm)
• Relative accuracy: ± 0.06 hPa (or ±50 cm)
• Absolute accuracy: ± 1 hPa (or ±8 m)
• Temperature accuracy: ± 0.4°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, 2μA for temperature measurement @1Hz sampling rate, Standby: <1 μA
• Supply voltage: VDDIO: 1.2 – 3.6 V, VDD: 1.7 – 3.6 V
• 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 with optional interrupt, 4-wire SPI, 3-wire SPI with optional interrupt

Benefits

• Highest precision and fast read-out speed enable accurate gesture and motion tracking
• Small footprint and thin package facilitate system integration
• Low power consumption required for mobile applications and wearables
• Absolute temperature sensor can be used in applications like weather stations or thermostats
• Intelligent FIFO improves system power consumption & enables MCU multitasking

Target Applications

• Local weather station and thermostat (micro weather forecasting; wind speed measurement; room temperature control)
• Air flow control (smart filter replacement, e.g. in whitegoods; Servers CPU ventilation control)
• Health and sports (fall detection; accurate elevation gain, e.g. for smart watches)
• Outdoor navigation (GPS start-up time and accuracy improvement; dead-reckoning e.g. in tunnels)
• Indoor navigation (floor detection e.g. in shopping malls and parking garages)
• Smart Home (intruder detection and environmental monitoring of premises)