16-button sensor key reference design using LDC1314 inductor-to-digital converter

TIDA-00509

Overview

The unique inductive sensing capabilities of the LDC1314 are used to implement a contactless 16-key multi-function keyboard. It uses standard PCB technology and simply manufactured components to achieve a low-cost solution.

characteristic

● Features non-contact keys for superior reliability compared to electrical/mechanical contact solutions
● Easily used to implement ruggedized, environmentally sealed keyboard solutions for harsh environments
● Support simultaneous key presses
● Stable at different temperatures
● Easily expandable to larger key arrays

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Blockdiagram

Design Files

Documentation

16-Button Keypad Using the LDC1314 Inductance-to-Digital Converter Design Guide

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Update:2025-06-23 10:42:54

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