LC717A00AR Datasheet | SANYO

Ordering number : ENA2048B CMOS LSI Overview Capacitance-Digital-Converter LSI for Electrostatic Capacitive Touch Sensors 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 remended switch pattern is applied. Also, since LC717A00AR has a serial interface patible 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. Features - Detection system: Differential capacitance detection (Mutual capacitance type) - Input capacitance resolution: Can detect capacitance changes in the femto Farad order - Measurement interval (8 differential inputs): 18ms (Typ) (at initial configuration), 3ms (Typ) (at minimum interval configuration) - External ponents for measurement: Not required - Current consumption: 320μA (Typ) (VDD = 2.8V), 740μA (Typ) (VDD = 5.5V) - Supply voltage: 2.6V to 5.5V - Detection operations: Switch - Packages: VCT28 - Interface: I2C - patible bus or SPI selectable. - I2C Bus is a trademark of Philips Corporation. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace...