LDC1314KEYPAD-EVM

LDC1314 inductance-to-digital converter evaluation module: 16 button keypad

LDC1314KEYPAD-EVM

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Overview

The LDC1314KEYPAD evaluation module implements a 16 snap dome button keypad using only one LDC1314 to multiplex all 16 buttons.

This design uses the LDC1314 but can also be replicated with the LDC1312, LDC1612 and LDC1614.

Evaluation steps

Step 1: Purchase the LDC1314KEYPAD-EVM
Step 2: Download the LDC1314KEYPAD-EVM user's guide

  • 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
Inductive sensor AFEs
LDC1314 4-Ch, 12-bit, general purpose inductance to digital converter

 

Linear regulators (LDO)
LP2985 150-mA, 16-V, low-dropout voltage regulator with enable
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Evaluation board

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

GUI for evaluation module (EVM)

TIDA-00509 LDC1314 Inductive Keypad GUI and Firmware Installer – TIDCA92.ZIP (6561KB)

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
More literature LDC1314KEYPAD-EVM EU Declaration of Conformity (DoC) Jan. 02, 2019
User guide 16-Button Keypad Using the LDC1314 Inductance-to-Digital Converter Design Guide (Rev. A) Jun. 24, 2016

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-0050916-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter

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