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ON Semiconductor - LC717A30UR

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The LC717A30UR is a high performance, low cost, and highly usable capacitance converter for electrostatic capacitive touch and proximity sensors.

8 capacitance-sensing input channels ideal for use in any end products that needs an array of switches. The LC717A30UR facilitates a short system development time through its automatic calibration function and minimal external components. The detection result (ON/OFF) for each sensor is read out by the serial interface (I2C or SPI).

Target applications

Smart key, Control switches, Car audio and Proximity
Home Appliance, White goods and Induction Cooking
Security lock
PC Peripherals, Audio Visual equipment
Remote control switches

Long Copy - 201910 on

Features

Detection system: Differential capacitive detection using mutual capacitance
Sensor input pads: Operates with small to large capacitance sensor input pads
Input capacitance resolution: Capacitance detection down to femto-Farad level
Measurement time 16 ms for 8 sensors
Minimal external components
Selectable interface : I²C or SPI
Current consumption : 0.8 mA (VDD = 5.5 V)
Supply voltage : 2.6 to 5.5 V
AEC-Q100 qualified and PPAP capable

ON Semiconductor LC717A30UR Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

Benefits

Superior sensitivity performance - even not only wearing multiple layers of gloves, air gap, or thick materials but also gesture.
Reducing cost because of being unnecessary to supplement sensitivity.
Achieving layout freely because of receiving hardly from parasitic capacitance.
High adaptability by internal both noise reduction and correspondence system for environment changing.
Advantage tolerance for malfunction prevention of water.