Datasheet Texas Instruments LDC2114

ManufacturerTexas Instruments
SeriesLDC2114
Datasheet Texas Instruments LDC2114

4-Channel HMI Inductive Touch Buttons for Consumer and Low-Power Applications

Datasheets

LDC2112, LDC2114 Inductive Touch Solution for Low-Power HMI Button Applications datasheet
PDF, 1.8 Mb, Revision: B, File published: Apr 4, 2017
Extract from the document

Prices

Status

LDC2114PWRLDC2114PWTLDC2114YFDRLDC2114YFDTPLDC2114PWT
Lifecycle StatusPreview (Device has been announced but is not in production. Samples may or may not be available)Preview (Device has been announced but is not in production. Samples may or may not be available)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesYesNoNoNo

Packaging

LDC2114PWRLDC2114PWTLDC2114YFDRLDC2114YFDTPLDC2114PWT
N12345
Pin1616161616
Package TypePWPWYFDYFDPW
Industry STD TermTSSOPTSSOPDSBGADSBGATSSOP
JEDEC CodeR-PDSO-GR-PDSO-GS-XBGA-NS-XBGA-NR-PDSO-G
Package QTY20002503000250250
CarrierLARGE T&RSMALL T&RLARGE T&RSMALL T&RSMALL T&R
Width (mm)4.44.42.22.24.4
Length (mm)552.22.25
Thickness (mm)11.4.41
Pitch (mm).65.65.4.4.65
Max Height (mm)1.21.2.4.41.2
Mechanical DataDownloadDownloadDownloadDownloadDownload
Device Marking14G14G

Parametrics

Parameters / ModelsLDC2114PWR
LDC2114PWR
LDC2114PWT
LDC2114PWT
LDC2114YFDR
LDC2114YFDR
LDC2114YFDT
LDC2114YFDT
PLDC2114PWT
PLDC2114PWT
# Input Channels44444
Active Supply Current(Typ), mA3.663.663.663.66
Active Supply Current(Typ)(mA)3.66
Analog Supply (V), Min1.81.81.81.8
Analog Supply (V)(Max)1.8
Analog Supply (V)(Min)1.8
Approx. Price (US$)1.10 | 1ku
InterfaceGPIOs & I2CGPIOs & I2CGPIOs & I2CGPIOs & I2CGPIOs & I2C
L (Inductance) Resolution, Bits12121212
L (Inductance) Resolution(Bits)12
Operating Temperature Range, C-40 to 85-40 to 85-40 to 85-40 to 85
Operating Temperature Range(C)-40 to 85
Oscillation Amplitude(Max), V1.11.11.11.1
Oscillation Amplitude(Max)(V)1.1
Oscillation Amplitude(Min), V0.850.850.850.85
Oscillation Amplitude(Min)(V)0.85
Package GroupTSSOPTSSOPDSBGADSBGATSSOP
Package Size: mm2:W x L, PKG16TSSOP: 32 mm2: 6.4 x 5(TSSOP)16TSSOP: 32 mm2: 6.4 x 5(TSSOP)See datasheet (DSBGA)See datasheet (DSBGA)
Package Size: mm2:W x L (PKG)See datasheet (DSBGA)
RatingCatalogCatalogCatalogCatalogCatalog
Response Time(Max), 1/fsensorN/AN/AN/AN/A
Response Time(Max)(1/fsensor)N/A
Rp (Parallel Resonance Impedance) Resolution, BitsN/AN/AN/AN/A
Rp (Parallel Resonance Impedance) Resolution(Bits)N/A
Sensor Frequency, Hz1MHz to 30MHz1MHz to 30MHz1MHz to 30MHz1MHz to 30MHz
Sensor Frequency(Hz)1MHz to 30MHz
Sensor Rp Range(Max), Ohms10K10K10K10K
Sensor Rp Range(Max)(Ohms)10K
Sensor Rp Range(Min), Ohms35353535
Sensor Rp Range(Min)(Ohms)35
Stand-By Current(Typ), uA5555
Stand-By Current(Typ)(uA)5

Eco Plan

LDC2114PWRLDC2114PWTLDC2114YFDRLDC2114YFDTPLDC2114PWT
RoHSSee ti.comSee ti.comCompliantCompliantTBD
Pb FreeNo

Application Notes

  • Inductive Touch Buttons for HMIs
    PDF, 315 Kb, File published: Jan 9, 2017
    Consumer electronic device designs need to beattractive and reliable to be successful. However, mostdevices still rely on mechanical buttons which oftenemploy moving parts, gaskets, and cutouts leading tolong term reliability issues, increased costs, andinferior immunity to environmental factors. Inductivetouch buttons on the other hand enable aestheticallyattractive, gasket less, an
  • LDC2112/LDC2114 Inductive Touch System Design Guide
    PDF, 3.0 Mb, File published: Feb 2, 2017
    The Inductive Touch System Design Guide presents an overview of the typical sensor mechanicalstructure and sensor electrical design for human machine interface (HMI) button applications. Themechanical design chapter discusses several factors that impact button sensitivity, including metalselection, sensor geometry, sensitivity dependence on target-to-coil distance, and mechanical isolation
  • Inductive Touch - Configuring LDC2114 Touch-Button Sensitivity
    PDF, 771 Kb, File published: Mar 16, 2017
    Erroneous or unintended button presses can result in a frustrating user experience in a human machine interface (HMI). Capacitive touch buttons trigger anytime a grounded object is brought close to the button; this can often cause false or erroneous button presses. One advantage mechanical buttons have over capacitive touch buttons is that a certain amount of force must be applied on the buttons f
  • EMI Considerations for Inductive Sensing
    PDF, 151 Kb, File published: Feb 22, 2017
    This application note explains various EMI reduction techniques to help improve EMI performance for TI'sInductance-to-Digital Converters (LDC). Each section details a general technique with references to otheruseful online documents. A list of relevant EMI reduction techniques is provided for specific devices withinthe LDC family of products.

Model Line

Manufacturer's Classification

  • Semiconductors> Sensing Products> Inductive Sensing> Inductance to Digital Converters
EMS supplier