16, 24 KEY QMATRIX™ ICsThese digital charge-transfer (QT) QMatrix ICs QT60248 are designed to detect human touch on up to 16 or 24 keys when used with a
scanned, passive X-Y matrix. They will project touch keys through almost any dielectric, e.g. glass, plastic, stone, ceramic, and even
wood, up to thicknesses of 5 cm or more. The touch areas are defined as simple 2-part interdigitated electrodes of conductive material,
like copper or screened silver or carbon deposited on the rear of a control panel. Key sizes, shapes and placement are almost entirely
arbitrary; sizes and shapes of keys CAN be mixed within a single panel of keys and CAN vary by a factor of 20:1 in surface area. The
sensitivity of each key CAN be set individually via simple functions over the serial port by a host Microcontroller Key setups are stored
in an onboard EEPROM and do not need to be reloaded with each powerup. By Quantum Research Group
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QT60248 Pb-Free | QT60248 Cross Reference | QT60248 Schematic | QT60248 Distributor |
QT60248 Application Notes | QT60248 RoHS | QT60248 Circuits | QT60248 footprint |