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TIDA-00508

1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter

Design files

TIDA-00508

Design files

Overview

The LDC1314's unique inductive sensing capability is used to implement a contactless rotational position sensing solution that is accurate to 1 degree. 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
  • Absolute angle sensing with 1 degree accuracy
  • 0.1 degree resolution
  • Does not use magnets
  • Temperature stable
  • Automatically corrects for z-axis wobble
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Design files & products

Design files

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

download Design guide — TIDA-00508
TIDU953.PDF (6418 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-00508
TIDREO5.PDF (129 KB)

Detailed overview of design layout for component placement

download Assembly drawing — TIDA-00508
TIDREO6.PDF (300 KB)

Detailed overview of design layout for component placement

download Assembly drawing — TIDA-00508
TIDREO7.PDF (295 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-00508
TIDREO3.PDF (42 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Bill of materials (BOM) — TIDA-00508
TIDREO4.PDF (44 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDA-00508
TIDREP1.ZIP (160 KB)

Files used for 3D models or 2D drawings of IC components

download CAD/CAE symbol — TIDA-00508
TIDREP2.ZIP (75 KB)

Files used for 3D models or 2D drawings of IC components

download CAD/CAE symbol — TIDA-00508
TIDREP3.ZIP (139 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-00508
TIDCA89.ZIP (115 KB)

Design file that contains information on physical board layer of design PCB

download Gerber file — TIDA-00508
TIDCA90.ZIP (512 KB)

Design file that contains information on physical board layer of design PCB

download Gerber file — TIDA-00508
TIDCA91.ZIP (109 KB)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-00508
TIDREO8.PDF (281 KB)

PCB layer plot file used for generating PCB design layout

download PCB layout — TIDA-00508
TIDREO9.PDF (287 KB)

PCB layer plot file used for generating PCB design layout

download PCB layout — TIDA-00508
TIDREP0.PDF (276 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-00508
TIDREO1.PDF (20 KB)

Detailed schematic diagram for design layout and components

download Schematic — TIDA-00508
TIDREO2.PDF (38 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

ESD protection diodes

TPD4E004 — Quad 1.6-pF, 5.5-V, ±8-kV ESD protection diode with VCC pin for High Speed Interfaces

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

LP2985-N — 150-mA, 16-V, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Inductive sensor AFEs

LDC1312 — 2-Ch, 12-bit, general purpose inductance to digital converter

Data sheet: PDF | HTML
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 | HTML
Inductive sensor AFEs

LDC1614 — 4-Ch, 28-bit, high-resolution Inductance to digital converter

Data sheet: PDF | HTML
Inductive sensor AFEs

LDC1314 — 4-Ch, 12-bit, general purpose inductance to digital converter

Data sheet: PDF | HTML
Inductive sensor AFEs

LDC1612 — 2-Ch, 28-bit, high-resolution Inductance to digital converter

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

LDC1314DIAL-EVM —

LDC1314 inductance-to-digital converter evaluation module: 1-degree dial

The LDC1314DIAL evaluation module implements a contactless rotational position sensing solution that is accurate to 1 degree with 0.1 degree resolution.

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

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter
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LDC1314DIAL-EVM —

LDC1314 inductance-to-digital converter evaluation module: 1-degree dial

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Hardware development
Reference design
TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter
TI’s Standard Terms and Conditions for Evaluation Items apply.

Software

Calculation tool

TIDCA88 — TIDA-00508 Target Shape Calculator

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter
Download options

TIDCA88 — TIDA-00508 Target Shape Calculator

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Version: 01.00.00.00
Release date: Apr 23, 2015
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TIDA-00508 Target Shape Calculator (zip)  — 26 K

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Hardware development
Reference design
TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter

Release Information

The design resource accessed as www.ti.com/lit/zip/tidca88 or www.ti.com/lit/xx/tidca88/tidca88.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDCA88. Please update any bookmarks accordingly.
GUI for evaluation module (EVM)

TIDCA93 — TIDA-00508 LDC1314 Inductive Dial GUI and Firmware Installer

Supported products & hardware

Supported products & hardware

Products
Inductive sensor AFEs
LDC1314 — 4-Ch, 12-bit, general purpose inductance to digital converter
Hardware development
Reference design
TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter
Evaluation board
LDC1314DIAL-EVM — LDC1314 inductance-to-digital converter evaluation module: 1-degree dial
Download options

TIDCA93 — TIDA-00508 LDC1314 Inductive Dial GUI and Firmware Installer

close
Latest version
Version: 01.00.00.00
Release date: Apr 23, 2015
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TIDA-00508 LDC1314 Inductive Dial GUI and Firmware Installer (zip)  — 6301 K

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Products
Inductive sensor AFEs
LDC1314 — 4-Ch, 12-bit, general purpose inductance to digital converter
Hardware development
Reference design
TIDA-00508 — 1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter
Evaluation board
LDC1314DIAL-EVM — LDC1314 inductance-to-digital converter evaluation module: 1-degree dial

Release Information

The design resource accessed as www.ti.com/lit/zip/tidca93 or www.ti.com/lit/xx/tidca93/tidca93.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDCA93. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
* Design guide 1º Dial Using the LDC1314 Inductance-to-Digital Converter Design Guide Jul 8, 2015
Technical article Inductive sensing: Improve the ENOB of a multichannel LDC by 4 bits in 3 simple st PDF | HTML Jun 24, 2015
Technical article Inductive sensing: How far can I sense? PDF | HTML Jun 17, 2015

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