LDC1000 5V, High Resolution, Inductance to Digital Converter for Inductive Sensing Applications | TI.com

LDC1000 (NRND)

5V, High Resolution, Inductance to Digital Converter for Inductive Sensing Applications

 

Description

Inductive Sensing is a contact-less, short-range sensing technology that enables low-cost, high-resolution sensing of conductive targets in the presence of dust, dirt, oil, and moisture, making it extremely reliable in hostile environments. Using a coil which can be created on a PCB as a sensing element, the LDC1000 enables ultra-low cost system solutions.

Inductive sensing technology enables precise measurement of linear and angular position, displacement, motion, compression, vibration, metal composition, and several other applications in markets including automotive, consumer, computer, industrial, medical, and communications. Inductive sensing offers better performance and reliability at lower cost than other competitive solutions.

The LDC1000 is the world’s first inductance-to-digital converter, offering the benefits of inductive sensing in a low-power, small-footprint solution. The product is available in a SON-16 package and offers several modes of operation. A serial peripheral interface (SPI) simplifies connection to an MCU.

Features

  • Magnet-Free Operation
  • Sub-Micron Precision
  • Adjustable Sensing Range (Through Coil Design)
  • Lower System Cost
  • Remote Sensor Placement (Decoupling the LDC
    From Harsh Environments)
  • High Durability (by Virtue of Contact-Less
    Operation)
  • Insensitivity to Environmental Interference (Such
    as Dirt, Dust, Water, Oil)
  • Supply Voltage, Analog: 4.75 V to 5.25 V
  • Supply Voltage, I/O: 1.8 V to 5.25 V
  • Supply Current (Without LC Tank): 1.7 mA
  • RP Resolution: 16-Bit
  • L Resolution: 24-Bit
  • LC Frequency Range: 5 kHz to 5 MHz

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Design tool

Design with LDC1000

 Inductive Sensing  Coil Designer
Use this tool to get started with inductive sensing coil design.
 
Distance (d)  cm
Resolution (r)  μm
Diameter of Target (td)  cm
Target Material (tm)
Resolution based on  Rp  L