TIDA-00508

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

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

Design files & products

Design files

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

TIDU953.PDF (6418 K)

Reference design overview and verified performance test data

TIDREO1.PDF (20 K)

Detailed schematic diagram for design layout and components

TIDREO2.PDF (38 K)

Detailed schematic diagram for design layout and components

TIDREO3.PDF (41 K)

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

TIDREO4.PDF (43 K)

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

TIDCA88.ZIP (26 K)

Tool for calculating critical component values required in the reference design

TIDREO5.PDF (128 K)

Detailed overview of design layout for component placement

TIDREO6.PDF (299 K)

Detailed overview of design layout for component placement

TIDREO7.PDF (295 K)

Detailed overview of design layout for component placement

TIDREP1.ZIP (160 K)

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

TIDREP2.ZIP (74 K)

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

TIDREP3.ZIP (138 K)

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

TIDCA89.ZIP (114 K)

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

TIDCA90.ZIP (511 K)

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

TIDCA91.ZIP (109 K)

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

TIDREO8.PDF (280 K)

PCB layer plot file used for generating PCB design layout

TIDREO9.PDF (287 K)

PCB layer plot file used for generating PCB design layout

TIDREP0.PDF (275 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

ESD & surge protection ICs

TPD4E004Quad 0.8-pF, 5.5-V, ±8-kV ESD protection diode with with VCC pin for High Speed Interfaces

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inductive sensor AFEs

LDC13122-Ch, 12-bit, general purpose inductance to digital converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inductive sensor AFEs

LDC13144-Ch, 12-bit, general purpose inductance to digital converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inductive sensor AFEs

LDC16122-Ch, 28-bit, high-resolution Inductance to digital converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inductive sensor AFEs

LDC16144-Ch, 28-bit, high-resolution Inductance to digital converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

LP2985-N150-mA, 16-V, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430F552825 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Hardware

Evaluation board

LDC1314DIAL-EVM – LDC1314 Inductance-to-Digital Converter Evaluation Module

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 LDC1312LDC1612 and LDC1614.

In stock
Limit: 5

Software

GUI for evaluation module (EVM)

TIDA-00508 LDC1314 Inductive Dial GUI and Firmware Installer – TIDCA93.ZIP (6301 K)

Technical documentation

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Type Title Date
* Design guide 1º Dial Using the LDC1314 Inductance-to-Digital Converter Design Guide Jul. 08, 2015
Technical article Inductive sensing: Improve the ENOB of a multichannel LDC by 4 bits in 3 simple steps Jun. 24, 2015
Technical article Inductive sensing: How far can I sense? Jun. 17, 2015

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