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WF282 30~100kPa IIC/SPI Digital Model Absolute Pressure Sensor Package LGA8

  • Operation range: Pressure: 300 1200 hPa.
  • Sensor precision: ± 0.006 hPa (or ±5 cm).
  • Sensor accuracy: ± 0.06 hPa (or ±50 cm) .
  • Temperature: -40 85 °C.
  • Temperature accuracy: ± 0.5°C.
  • Pressure temperature sensitivity: < 0.5Pa/K.
  • Measurement time: Typical: 28 ms.
  • Minimum: 3 ms.
  • Standby: <1 µA.
  • Supply voltage: VDDIO: 1.2 3.6 V, VDD: 1.7 3.6 V.
  • Calibration: Individually calibrated with coefficients for measurement correction.
  • Interface: I2C and SPI (both with optional interrupt).
  • Package dimensions: 8-pin LGA.

Invoering

The WF282 is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy and a low current consumption. The WF282 is both a pressure and a temperature sensor. The pressure sensor element is based on a capacitive sensing principle which guarantees a high precision during temperature changes. The small package makes the WF282 ideal for mobile applications and wearable devices.
The WF282‘s internal signal processor converts the output from the pressure and temperature sensor elements to 24-bit results. Each pressure sensor has been calibrated individually and contains calibration coefficients. The coefficients are used in the application to convert the measurement results to true pressure and temperature values.
The WF282 has a FIFO that can store the latest 32 measurements. By using the FIFO, the host processor can remain in a sleep mode for a longer period of time between readouts. This can reduce the overall system power consumption.
Sensor measurements and calibration coefficients are available through the serial I2C or SPI interface.

Toepassingen

◼ 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)
◼ Weather Station (‘Micro-weatherand local forecasts)

Afmetingen verpakking

The sensor housing is an 8Pin LGA package with metal lid. Its dimensions are 2mm (±0.1 mm) x 2.5mm (±0.1
mm) x 0.95mm (±0.05mm)

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