Digital pressure sensor’s ASIC lowers current consumption

A low current consumption model has been added to the HSPPAD series of digital pressure sensors for integration into smartphones, tablets and wearable devices. The HSPPAD042A has been developed in response to the need smartphones, tablets and wearable electronics using different kinds of software and applications which demand higher performance while increasing the power requirement. Sensors need to be not only power-efficient but also more compact given the higher number of parts integrated, says the company.

After overhauling the ASIC, the sensor is claimed to achieve the industry’s lowest current consumption level (1.8µA in low power mode) and high sensing precision (absolute pressure accuracy: ±0.7hPa, relative pressure accuracy: ±0.05hPa).

Measuring only 2.0 × 2.5 × 0.9mm the sensor also realises space savings of approximately 20% compared to the mounting area of existing products from the company, as a result of changes to the internal configuration of the sensor. The sensor incorporates temperature compensation circuitry and a 16-step FIFO, helping to reduce the design workload of end-product manufacturers.

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