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HP303B 24Bit High Precision Digital Pressure Sensor
  • HP303B 24Bit High Precision Digital Pressure Sensor

HP303B 24Bit High Precision Digital Pressure Sensor

DWM17111904

HP303B 24Bit High Precision Digital Pressure Sensor employs a MEMS pressure sensor with an I2C interface to provide accurate temperature, pressure or altitude data.

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$3.32
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499 Items

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Description

Features

1. Descriptions of Digital Sensor HP303BW:

The HP303B is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy and a low current consumption, 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 small package makes the HP303B 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 coeicients calculated during this process are stored in the calibration registers. The coeicients are used in the application to convert the measurement results to high accuracy pressure and temperature values.

The result FIFO can store up to 32 measurement results, allowing for a reduced host processor polling rate. Sensor measurements and calibration coeicients are available through the serial I2C or SPI interface. The measurement status is indicated by status bits or interrupts on the SDO pin.

2. Features of Digital Sensor HP303BW:

● 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.
● 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 coeicients for measurement correction.
● FIFO: Stores up to 32 pressure or temperature measurements.
● Interface: I2C and SPI (both with optional interrupt)
● Package dimensions: 8-pin LGA 3.6 mm x 3.8 mm x 1.2 mm.
● Green Product (RoHS) Compliant

3. Applications of Digital Sensor HP303BW:

● 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-weather' and local forecasts)
● HDD drivers, (leak rate detection in hard disk drives)
● Drones (flight stability and height control)
 

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Product Details
DWM17111904
499 Items
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