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LDS6100-Block Diagram
LDS6020-Block Diagram


20 Channel Capacitive Touch Controller

The LDS6100 PureTouch® capacitive touch sensor IC is a highly accurate solution for capacitive touch sensor applications, supporting a wide variety of possible touch input types including buttons, scroll wheels, and sliders. The device contains 20 capacitive sensor input pins, 10 of which may be optionally configurable as Direct Communication Mode (DCM) outputs to emulate mechanical button operation.


  • 20 touch sensor channels
  • 2ms update rate per active sensor
  • Built-in Slider/Scroll Support
  • Configurable hysteresis and debounce
  • 1.65-5.5v supply voltage
  • <125uW (full power), <50uW (low power)
  • I2C, SPI, SMBus serial I/F options with VDDIO
  • DCM Outputs
  • TQFN and SSOP packages available

Product Specification

Touch Voltage (V)Touch Sensors (#)Scan Rate (ms)Auto CalibrationHyst / Debounce ConfigEnh Prox Sensefield__power_on_touch_detect_ynInterfaceI/O Voltage (V)GPIOs (#)DCM Outputs (#)Pkg. Type
1.65 - 5.50202.00 - 40.00YYSPI, SMBUS, I2C1.65 - 5.50110SSOP, VFQFPN

Product Options

Orderable Part IDPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
LDS6100NQGI8NQG40VFQFPN40IYesReelCheck Availability
LDS6100PVGI8PVG48SSOP48IYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
LDS6100 Family Datasheet (Rev 0.7 April 2012) Datasheet PDF 711 KB Apr 17, 2012
Apps Notes & White Papers
LDS610x Family AN2 Ref Code and Initialization Application Note PDF 1.77 MB Dec 12, 2012
PDN# : PA-12-02R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 56 KB Jul 25, 2013
IDT Pure Touch Product Selector Guide Misc PDF 19 KB Jan 27, 2011
IDT Touch 6100/6120 Family flyer Flyer PDF 1022 KB Dec 18, 2009