Inductive Linear Position Sensing Booster Pack Reference Design

(ACTIVE) TIDA-00460

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Key Document

Description

Typical implementations of distance measurements use expensive rare-earth magnets. To lower overall system cost, this reference design walks through the implementation of industry’s first inductance-to-digital converters from TI for linear position sensing without the use of any expensive rare-earth magnets. Linear position sensing determines the position of a target that moves laterally across an inductive sensor that is generating a magnetic field. An inductance-to-digital converter (LDC), like the LDC1000 or LDC1101, senses inductance changes of an inductor that comes into proximity with a conductive target, such as a piece of metal. The LDC measures this inductance shift to provide information about the position of a conductive target over a sensor coil. The inductance shift is caused by eddy currents generated in the target due to the magnetic field of the sensor. These eddy currents generate a secondary magnetic field that opposes the sensor field, causing a shift in the observed inductance.

Features
  • Inductive sensing technology
  • Non-contact detection and measurement
  • Increased flexibility and performance without requiring analog trimming techniques
  • Remote sensor placement
  • Insensitive to environmental contaminations
  • More reliable operation sensor self-diagnostic
  • High resolution and accurate
  • Replace legacy analog only solutions
  • Low power, low cost and low footprint solution

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (5)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LDC1101  1.8V, High Resolution Inductance to Digital Converter  Inductive Sensing  Sample & Buy View Design Kits & Evaluation Modules
LP5951  Micropower 150mA Low-Dropout (LDO) CMOS Voltage Regulator  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  16-Bit Ultra-Low-Power Microcontroller, 128KB Flash, 8KB RAM, USB, 12Bit ADC, 2 USCIs, 32Bit HW MPY  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPD1E10B06  Single-Channel ESD in 0402 Package With 10pF Capacitance and 6V Breakdown  Circuit Protection  Sample & Buy View Design Kits & Evaluation Modules
TPD2E001  Low-Capacitance 2-Channel +/-15kV ESD Protection Array for High-Speed Data Interfaces  Circuit Protection  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (2)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1952 29 Jun 2015 712
PDF 156 19 Jun 2015 712
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 367 19 Jun 2015 62
PDF 189 19 Jun 2015 29
ZIP 3417 19 Jun 2015 21
PDF 1097 19 Jun 2015 168
PDF 192 19 Jun 2015 33
PDF 618 19 Jun 2015 341
Related Tools & Software

Reference Designs (4)



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