Pressure sensor resists temperature fluctuations
Barometric pressure sensors are popular in wearables and smartphones for acquiring altitude data in activity meters and indoor navigation.
Increased demand for waterproof, smaller, robust, and disturbance-resistant barometric pressure sensors has prompted ROHM to develop a waterproof pressure sensor that is resistant to temperature fluctuations and mechanical stress.
The BM1390GLV combines MEMS and previously cultivated control circuitry with original waterproof technology to deliver IPX8 waterproof performance in a compact 2.0 mm × 2.0 mm × 1.0 mm package.
A proprietary built-in temperature compensation function ensures superior temperature characteristics, while the ceramic package minimises fluctuations of device-specific characteristics caused by mechanical stress during board mounting.
These features enable high accuracy barometric pressure measurement in applications requiring waterproof performance and in environments exposed to large temperature changes.
The pressure sensor is available from distributor Digi-Key.