LC717A00AR: Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

Description: The LC717A00AR is a high-performance, low-cost cap...
  • 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.
  • Features
  • 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.
  • Applications
  • White goods
  • Black goods
  • PC peripherals
  • Office Automation
  • End Products
  • Washing machine
  • Refrigerator
  • Cooking appliances
  • TV
  • Printer
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Product Change Notification
    Availability and Samples
    LC717A00AR-NH
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors
  • Package Type: VCT-28
  • Package Case Outline: 601AE
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • ON Semiconductor:64,000
  • Specifications
  • Number of Sensing Inputs:
  • Number of Sensing Outputs:
  • Interface Control: I2C  SPI 
  • Proximity Sensing: Yes 
  • VDD Min (V): 2.6 
  • VDD Max (V): 5.5 
  • IDD Typ (µA): 740  320 
  • Package Type: VCT-28 
  • ON Semiconductor Full Web Site