LC717A10AR-NH
数据手册.pdfCapacitive 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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