LC717A00AJ Datasheet | onsemi

Capacitance‐Digital‐Converter LSI for Electrostatic Capacitive Touch Sensors Overview The LC717A00AJ 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, LC717A00AJ can operate as stand- alone when the remended switch pattern is applied. Also, since LC717A00AJ has a serial interface patible with I2Ct 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): - 18 ms (Typ) (at Initial Configuration) - 3 ms (Typ) (at Minimum Interval Configuration) - External ponents for Measurement: Not Required - Current Consumption: - 320 m A (Typ) (VDD = 2.8 V) - 740 m A (Typ) (VDD = 5.5 V) - Supply Voltage: 2.6 V to 5.5 V - Detection Operations: Switch - Interface: I2C patible Bus or SPI Selectable .onsemi. SSOP30 (225 mil) CASE 565AZ MARKING DIAGRAM XXXXXXXXXX YMDDD XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data ORDERING INFORMATION See detailed ordering and shipping information on page 11 of this data sheet. © Semiconductor ponents Industries, LLC, 2013 October, 2017 - Rev. 1 Publication Order Number: LC717A00AJ/D Specifications...