LC717A10AJ

LC717A10AJ Capacitance‐Digital‐Converter LSI for Electrostatic Capacitive Touch Sensors Overview The LC717A10AJ 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 (I2C 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): ♦ 30 ms (Typ) (at Initial Configuration) ♦ 6 ms (Typ) (at Minimum Interval Configuration) External Components for Measurement: Not Required Current Consumption: ♦ 570 mA (Typ) (VDD = 2.8 V) ♦ 1.3 mA (Typ) (VDD = 5.5 V) Supply Voltage: 2.6 V to 5.5 V Detection Operations: Switch Interface: I2C Compatible Bus or SPI Selectable www.onsemi.com SSOP30 (225 mil) CASE 565AZ MARKING DIAGRAM XXXXXXXXXX YMDDD XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability...