LC717A10AR-NH

Capacitive Touch Sensors TOUCH SENSOR 16CH

The LC717A10AR is a high-performance and low-cost capacitance-digital-converter LSI for electrostatic capacitive touch sensor, especially focused on usability. It has 16 channels capacitance-sensor input. This makes it ideal for use in the products that need many switches. Since the calibration function and the judgment of ON/OFF are automatically performed in LSI internal, it can make development time more short. A detection result ON/OFF for each input can be read out by the serial interface IC compatible bus or SPI. Also, measurement value of each input can be read out as 8-bit digital data. Moreover, gain and other parameters can be adjusted using serial interface.

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Detection system: Differential capacitance detection Mutual capacitance type

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High sensitivity performance - even wearing multiple layers of gloves, air gap, or thick materials

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Input capacitance resolution: Can detect capacitance changes in the femto Farad order

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Design friendly - can be connected directly to a familiar MCU and execute stand alone operation

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Measurement interval 16 differential inputs:

30ms Typ at initial configuration,

6ms Typ at minimum interval configuration

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Automated built-in noise and environmental change compensation function technology

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External components for measurement: Not required

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Interface: I2C compatible bus or SPI selectable.

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Current consumption: 570 µA Typ VDD = 2.8 V, 1.3 mA Typ VDD = 5.5 V

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Supply voltage: 2.6 V to 5.5 V

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Detection operations: Switch

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