LDC1000 (NRND)

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

5V, High Resolution, Inductance to Digital Converter for Inductive Sensing Applications - LDC1000


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.


  • 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
  • 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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Other qualified versions of LDC1000

Version Part Number Definition
Automotive LDC1000-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

WEBENCH® Designer 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