Capacitive digital humidity sensor for smartphones

This tiny mounting area was achieved by applying ALPS original IC design technology to reduce the size of the IC embedded in the sensor. And as with the existing analog HSHCA series product, the HSHCAL series employs proprietary sensing film for the sensor part, drawing on experience and achievements so far in the MEMS sensor market. This ensures excellent linearity over a broad relative humidity range of 0-100% and superior sensing precision.

An original sensor configuration enables temperature compensation within the sensor device, helping to reduce the customer’s design workload as compensation by the main unit is not required. As well as mobile devices, the HSHCAL series digital humidity sensor is suitable for wearable electronics, air-conditioning systems, air purifiers, refrigerators, printers, digital cameras, other home appliances and other electronic equipment.

Today’s mobile devices and home appliances contain a large number of sensors. Used, for example, to detect the status of doors and lids, as well as environmental characteristics such as direction, illumination, air pressure and humidity, sensors enhance device functionality and performance and create comfortable and convenient operating environments for users. Given that a wide range of sensing data has to be processed by ICs within the end device, manufacturers are looking for sensors that provide digital output. Components that are to be integrated into the devices must also make efficient use of space to support ongoing size reductions and greater multifunctionality.