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

LDC1000
This product is in the process of being discontinued. Customers may still purchase limited quantities by contacting their TI sales representative or authorized distributor. Please review TI’s obsolescence policy for details on placing final orders and receiving final shipments.
5V, High Resolution, Inductance to Digital Converter for Inductive Sensing Applications

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

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

Design with LDC1000

Use this tool for building custom sensor coils with known system constraints.
Coil Shape
 
Shape
Outer Diameter  mil
Turns per Layer (N)
Layers (M)