D1912HKPC 20121129-S00004 No.A2161-1/11

http://onsemi.com

Semiconductor Components Industries, LLC, 2013

August, 2013

Ver1.0.1

LC717A10AR

Overview

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

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.

Features

• Detection system: Differential capacitance detection (Mutual capacitance type)

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

• Measurement interval (16 differential inputs): 30ms (Typ) (at initial configuration),

6ms (Typ) (at minimum interval configuration)

• External components for measurement: Not required

• Interface: I

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

• Supply voltage: 2.6V to 5.5V

• Detection operations: Switch

• Packages: VCT28

Ordering number : ENA2161

CMOS LSI

Capacitance-Digital-Converter LSI

for Electrostatic Capacitive Touch

Sensors

* I