Hardware
Evaluation board
LDC1314KEYPAD-EVM — LDC1314 Inductance-to-Digital Converter Evaluation Module
Not available on TI.com
Software
GUI for evaluation module (EVM)
TIDA-00509
16-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter
TIDA-00509
Overview
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
Industrial
- Appliance battery chargers
- Application Processor Module
- Basic thermostat
- Blood pressure monitor
- Building security gateway
- CPAP machine
- Calling button operating panel
- Compact relay
- Currency counter
- DJ equipment
- EPOS Card Reader
- EPOS printer
- Flat panel
- HMI panel
- HVAC gateway
- Industrial robot wired teach pendant
- Industrial robot wireless teach pendant
- Intrusion HMI panel
- Intrusion control panel
- Key panel
- Micro programmable controller
- Mobile POS
- Pachinko machine
- Piano, keyboard & synthesizer
- Portable POS
- Portable data terminal
- Power analyzer
- Professional video camera
- Programmable DC power supply
- Pulse oximeter
- Robotic lawn mower
- Smart thermostat
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDU954A.PDF (1917 K)
Reference design overview and verified performance test data
TIDREP4.PDF (60 K)
Detailed schematic diagram for design layout and components
TIDREP5.PDF (38 K)
Detailed schematic diagram for design layout and components
TIDREP6.PDF (31 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDREP7.PDF (207 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDREP8.PDF (74 K)
Detailed overview of design layout for component placement
TIDREP9.PDF (293 K)
Detailed overview of design layout for component placement
TIDREQ2.ZIP (220 K)
Files used for 3D models or 2D drawings of IC components
TIDREQ3.ZIP (138 K)
Files used for 3D models or 2D drawings of IC components
TIDCA94.ZIP (77 K)
Design file that contains information on physical board layer of design PCB
TIDCA95.ZIP (109 K)
Design file that contains information on physical board layer of design PCB
TIDREQ0.PDF (326 K)
PCB layer plot file used for generating PCB design layout
TIDREQ1.PDF (275 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
MSP430 microcontrollers
MSP430F5528 — 25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier
Data sheet: PDF | HTMLStart development
Technical documentation
= Top documentation selected by TI
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View all 3
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | 16-Button Keypad Using the LDC1314 Inductance-to-Digital Converter Design Guide (Rev. A) | Jun. 24, 2016 | |
| Technical article | Trends in building automation: connected sensors for user comfort | PDF | HTML | Sep. 02, 2016 | |
| Technical article | Inductive sensing: Improve the ENOB of a multichannel LDC by 4 bits in 3 simple st | PDF | HTML | Jun. 24, 2015 |
Support & training
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