Inductive Sensing 32-Position Encoder Knob Reference Design using the LDC1312/LDC1314

(ACTIVE) TIDA-00615

Description & Features

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Key Document

Description

An inductive sensing based incremental encoder knob design can provide a robust and low-cost interface for control inputs.  It can reliably operate in environments which have dirt, moisture, or oil which would pose issues for alternate sensing technologies. This solution requires no magnets.

Features
  • High reliability, contactless, encoder implementation suitable for dirty, wet, and other challenging environments
  • Scalable to support multiples of 4 positions/rotation
  • Minimum MCU requirements
  • No permanent magnets required; operates effectively even with magnetic or electrical environmental interference

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


  




TI Devices (6)

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
CD74HC4511  High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver  Switches and Multiplexers  Sample & Buy Not Available
LDC1312  2-channel, 12-bit Inductance-to-Digital Converter with I2C for Inductive Sensing  Inductive Sensing  Sample & Buy View Design Kits & Evaluation Modules
LDC1314  4-channel, 12-bit Inductance-to-Digital Converter with I2C for Inductive Sensing  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
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.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 1751 12 Dec 2014
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 3508 28 Jan 2016 680
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 3208 01 Mar 2016 77
ZIP 867 01 Mar 2016 38
PDF 1406 01 Mar 2016 91
PDF 175 01 Mar 2016 25
PDF 214 01 Mar 2016 33
PDF 624 01 Mar 2016 269
Related Tools & Software

Reference Designs (1)

Name Part Number Tool Type
1-Degree Dial Reference Design Using the LDC1314 Inductance-to-Digital Converter  TIDA-00508  TI Designs

Software (1)




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