TI Home >   Semiconductors >   Design resources >   Reference designs >   16-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter

16-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter
TIDA-00509
ACTIVE
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

The LDC1314's unique inductive sensing capability is used to implement a contactless, 16 button, multi-function keypad. It uses standard PCB technology and easily manufactured components to implement a low cost solution.

This reference design uses the LDC1314.  This reference design can also be used with LDC1312, LDC1612 and LDC1614.

Features
  • Contactless buttons, with superior reliability over electrical/mechanical contact solutions
  • Can be easily used to implement ruggedized, environmentally sealed keypad and keyboard solutions for harsh environments
  • Supports simultaneous button presses
  • Temperature stable
  • Easily scalable to larger key arrays

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files
Order Now
Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

LDC1314KEYPAD-EVM :
LDC1314 Inductance-to-Digital Converter Evaluation Module

 $49.00(USD)
Pricing may vary.



ACTIVE
Contact a Distributor  

TI Devices (7)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LDC1312  2-channel, 12-bit Inductance-to-Digital Converter with I2C for Inductive Sensing  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
LDC1314  4-channel, 12-bit Inductance-to-Digital Converter with I2C for Inductive Sensing  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
LDC1612  2-channel, 28-bit Inductance-to-Digital Converter with I2C for Inductive Sensing  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
LDC1614  4-channel, 28-bit Inductance-to-Digital Converter with I2C for Inductive Sensing  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
LP2985-N  Micropower 150mA Low-Noise Ultra-Low-Dropout Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  25 MHz MCU with Integrated USB Phy, 128KB Flash, 8KB RAM, 12Bit/10 Channel ADC, 32BIT HW Multiplier  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TPD4E004  4-Channel ESD Protection Array for High-Speed Data Interfaces  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LDC1312 Download
LDC1314 Download
LDC1612 Download
LDC1614 Download
LP2985-N Download Download
MSP430F5528 Download Download
Download -
Download -
TPD4E004 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1917 24 Jun 2016
Design files (12)
Title Type Size (KB) Date
ZIP 109 24 Apr 2015
ZIP 77 24 Apr 2015
ZIP 138 24 Apr 2015
ZIP 220 24 Apr 2015
PDF 275 24 Apr 2015
PDF 326 24 Apr 2015
PDF 293 24 Apr 2015
PDF 74 24 Apr 2015
PDF 207 24 Apr 2015
PDF 31 24 Apr 2015
PDF 38 24 Apr 2015
PDF 60 24 Apr 2015
Related Tools & Software

Software (1)



Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles