Microchip (CAP1298-1-A4-TR) Touch Screen/Proximity Controller

Touch Screen/Proximity Controller, 8-CH Capacitive, I2C, SMBus Interface, 3V or5.5V Supply, QFN-16Product OverviewThe CAP1298-1-A4-TR is a 8-channel Capacitive Touch Sensor which incorporatesRightTouch® technology. It contains eight (8) individual capacitive touch sensorinputs with programmable sensitivity for use in touch sensor applications. Eachsensor input is calibrated to compensate for system parasitic capacitance andautomatically recalibrated to compensate for gradual environmental changes. TheCAP1298 includes multiple pattern touch recognition that allows the user toselect a specific set of buttons to be touched simultaneously. If this patternis detected, a status bit is set and an interrupt is generated. The CAP1298 hasactive and standby states, each with its own sensor input configurationcontrols. Power consumption in the Standby and Combo states is dependent on thenumber of sensor inputs enabled as well as averaging, sampling time and cycletime. Deep sleep is the lowest power state available, drawing 5µA (typical) ofcurrent.Programmable sensitivityAutomatic recalibrationCalibrates for parasitic capacitanceProximity detectionIsolates the proximity antenna from attenuationReduces system noise sensitivity effects on inputsPower button supportPress and hold feature for volume-like applicationsAnalogue filtering for system noise sourcesRF detection and avoidance filtersLow power operation - 50µA Quiescent current in StandbySamples one or more channels in standbySMBus/I²C Compliant communication interface8kV ESD rating on all pins (HBM)ApplicationsSensing & Instrumentation, Computers & Computer Peripherals, ConsumerElectronicsProduct InformationIC Interface Type: I2C, SMBusSupply Voltage Min: 3VSupply Voltage Max: 5.5VController IC Case Style: QFNNo. of Pins: 16PinsMSL: MSL 1 - Unlimited