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Infineon DPS422 digital barometric pressure and temperature sensor

The DPS422 is a miniaturized digital barometric air pressure and temperature sensor with high accuracy and low current consumption

Infineon DPS422 product image

The DPS422 is a miniaturized digital barometric air pressure and temperature sensor with high accuracy and low current consumption. Pressure sensing is carried out using a capacitive sensor element, guaranteeing high accuracy over temperature. The small 2.0 x 2.5 x 0.73 mm package makes the DPS422 ideal for mobile applications and wearable devices
The pressure and temperature sensor elements are measured by a 24-bit ΣΔ ADC. Measurement results can be accessed over I2C or SPI, with an optional configurable interrupt and a result FIFO capable of holding 32 pressure and/or temperature measurements


Key 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)


Additional features

  • Absolute accuracy: ± 1 hPa (or ±8 m) 
  • Temperature accuracy: ± 0.4°C 
  • Pressure temperature sensitivity: < 0.5 Pa/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 interru


Applications

  • Local weather station and thermostat
  • Air flow control
  • Health and sports
  • Outdoor navigation
  • Indoor navigation
  • SmartHome

Infineon DPS422 digital barometric sensor | EBV Elektronik

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