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LC717A00AJ: Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

Datasheet: Capacitance-Digital-Converter LSI for Electrostatic Capacitive Touch Sensors
Rev. 1 (140kB)
Product Overview
»View Material Composition
» Product Change Notification
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 recommended switch pattern is applied. Also, since LC717A00AJ 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   Benefits
     
  • 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   End Products
  • White goods
  • Black goods
  • PC peripherals
  • Office Automation
 
  • Refrigerator
  • Washing machine
  • Cooking appliances
  • TV
  • Printer
Availability & Samples
Specifications
Case Outlines
Application Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
LC717A00AJ-AH Active
Pb-free
Halide free
LC717A00AJ SSOP-30 565AZ 3 260 Tape and Reel 1000 $0.9866
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 6,000

Product
Description
Pricing ($/Unit)
Compliance
Status
Number of Sensing Inputs
Number of Sensing Outputs
Interface Control
Proximity Sensing
VDD Min (V)
VDD Max (V)
IDD Typ (µA)
Package Type
LC717A00AJ-AH  
 $0.9866 
Pb
H
 Active   
8
8
I2C
SPI
Yes
2.6
5.5
320
740
SSOP-30
Case Outlines
565AZ   
Packages
LC717A00AJ: Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors
LC717A00AJ: Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors
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