ON Semiconductor

Demoboard TS-GEVB

Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

Topology: Other


The LC717A00AR is a high-performance, low-cost capacitance-digital-converter LSI for electrostatic capacitive touch sensor, especially focused on usability. It has 8 channels capacitance-sensor input. The built-in logic circuit can detect the state (ON/OFF) of each input and output the result. This makes it ideal for various switch applications. The calibration function is automatically performed by the built-in logic circuit during power activation or whenever there are environmental changes. In addition, since initial settings of parameters, such as gain, are configured, LC717A00AR can operate as stand-alone when the recommended switch pattern is applied. Also, since LC717A00AR has a serial interface compatible with I2C and SPI bus, parameters can be adjusted using external devices whenever necessary. Moreover, outputs of the 8-input capacitance data can be detected and measured as 8-bit data.


  • Detection system: Differential capacitance detection (Mutual capacitance type) • High sensitivity performance
  • even wearing multiple layers of gloves, air gap, or thick materials • Input capacitance resolution: Can detect capacitance changes in the femto Farad order • Design friendly
  • can be connected directly to a familiar MCU and execute stand alone operation • Measurement interval (8 differential inputs): 18ms (Typ) (at initial configuration),3ms (Typ) (at minimum interval configuration) • Automated built-in noise and environmental change compensation function technology • External components for measurement: Not required • Current consumption: 320 µA (Typ) (VDD = 2.8 V), 740 µA (Typ) (VDD = 5.5 V) • Supply voltage: 2.6 V to 5.5 V • Detection operations: Switch • Interface: I2C compatible bus or SPI selectable.


  Order Code SPEC Product series C
Tol. C VR
(V (DC))
Bauform H
Keramiktyp Technische Artikelnummer Betätigungskraft
Actuator-Farbe VPE λDom typ.
Farbe λPeak typ.
IV typ.
VF typ.
Chiptechnologie 50% typ.
Pins Reihen Gender Typ IR
Verpackung Farbe Samples
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885012107014 PDF WCAP-CSGP MLCCs 16 V(DC) 10 ±20% 16 0805 1.25 10 X5R Class II X5R0805106M016DFCT10000
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61301221021 PDF