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Datasheet Texas Instruments LDC1312DNTT

Datasheet Texas Instruments LDC1312DNTT

ManufacturerTexas Instruments
Part NumberLDC1312DNTT

2-channel, 12-bit Inductance-to-Digital Converter with I2C for Inductive Sensing 12-WSON -40 to 125




Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes


Package TypeDNT
Industry STD TermWSON
Package QTY250
CarrierSMALL T&R
Device MarkingLDC1312
Width (mm)4
Length (mm)4
Thickness (mm).75
Pitch (mm).5
Max Height (mm).8
Mechanical DataDownload »


# Input Channels2
Active Supply Current(Typ)(mA)2.1
Analog Supply (V)(Max)3.6
Analog Supply (V)(Min)2.7
Approx. Price (US$)1.80 | 1ku
L (Inductance) Resolution(Bits)12
Operating Temperature Range(C)-40 to 125
Oscillation Amplitude(Max)(V)1.8
Oscillation Amplitude(Min)(V)0.7
Package GroupWSON
Package Size: mm2:W x L (PKG)See datasheet (WSON)
Response Time(Max)(1/fsensor)N/A
Response Time(Min)(1/fsensor)75
Rp (Parallel Resonance Impedance) Resolution(Bits)N/A
Sensor Frequency(Hz)1k to 10M
Sensor Rp Range(Max)(Ohms)100K
Sensor Rp Range(Min)(Ohms)250
Stand-By Current(Typ)(uA)35

Eco Plan

Pb FreeYes

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: LDC1312EVM
    LDC1312 Evaluation Module for Inductance to Digital Converter with Sample PCB Coils
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Download » Application Notes, PDF, 215 Kb, 03-18-2016
    Power Reduction Techniques for the LDC131x/161x for Inductive Sensing
    Inductive sensing is a contactless technique for applications ranging from position or motion measurement of a conductive target to detection of spring compression or extension. Depending on the specific application, there are different system requirements regarding sensitivity, responsiveness, and power. Power consumption is a key parameter for many applications, including wearables, consumer ele
  • Download » Application Notes, PDF, 149 Kb, 02-12-2016
    Optimizing L Measurement Resolution for the LDC1312 and LDC1314
  • Download » Application Notes, PDF, 907 Kb, 09-23-2016
    LDC1xxx LDC Target Design
    TexasInstruments’ Inductive-to-DigitalConverter(LDC)technologycan accuratelymeasurewith a widevarietyof targetsizes,shapes,and materialcomposition.Thereare severaltargetdesignguidelinestomaximizethe effectivenessof an LDCmeasurementsystem.Thisapplicationnotecoversthe relevantfactorsof targetdesignthat affectinductivesensing,
  • Download » Application Notes, PDF, 102 Kb, 10-09-2016
    LDC1312, LDC1314, LDC1612, LDC1614 Sensor Status Monitoring
    TI’s multichannel inductance-to-digital converters (LDCs) LDC1612, LDC1614, LDC1312 and LDC1314feature three different methods for reporting conversion status information including errors, warnings, andcompleted conversion results. Information is available through the data registers, the status registers, andthe INTB pin of the device. This application note explains usage and interpretation
  • Download » Application Notes, PDF, 255 Kb, Revision: A, 06-01-2015
    Configuring Inductive-to-Digital-Converters for Parallel Resistance (RP) Variati (Rev. A)
    This application note reviews sensor RP configuration for LDC devices. LDC1000, LDC1041, LDC1051, LDC1312, LDC1314, LDC1612, LDC1614 are covered in this note. Clear understanding on how to set the RP_MIN and RP_MAX registers is necessary for not only RP measurements, but also for optimum L measurements. The fundamental principle of RP measurements is that magnetic fields from an LC circuit ge
  • Download » Application Notes, PDF, 298 Kb, 04-05-2016
    Setting LDC1312/4, LDC1612/4, and LDC1101 Sensor Drive Configuration
  • Download » Application Notes, PDF, 151 Kb, 02-22-2017
    EMI Considerations for Inductive Sensing
    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.
  • Download » Application Notes, PDF, 360 Kb, Revision: B, 03-21-2017
    LDC Device Selection Guide (Rev. B)
  • Download » Application Notes, PDF, 1.0 Mb, 03-24-2015
    LDC Sensor Design
    Getting the best performance out of an LDC requires a sensor suitable for the measurement. This app-note covers the parameters to consider when designing a sensor for a specific application. Specific areas of focus include the physical routing characteristics of PCB based sensors, considerations for the sensor capacitor, and techniques to minimize or compensate for parasitic effects.
  • Download » Application Notes, PDF, 205 Kb, 10-01-2015
    Measuring Rp of an L-C Sensor for Inductive Sensing
    When designing an application using TI’s LDC series of inductive sensors, it is necessary to know the L-C sensor’s equivalent parallel resistance RP at the sensor’s resonant frequency. The RP value changes as the target is moved; the minimum RP occurs when the metal target is closest to the sensor. The maximum RP occurs when the target is at the farthest distance. Accordingly, both values should b

Moldel Line

Series: LDC1312 (2)

Manufacturer's Classification

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