LDC1001

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5V, 16-bit Rp, 24-bit L resolution, inductance to digital converter

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Product details

Parameters

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Package | Pins | Size

WSON (NHR) 16 20 mm² 5 x 4 open-in-new Find other Inductive sensor AFEs

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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Description

The LDC1001 device is a 4.75-V to 5.25-V inductance-to-digital converter designed for parallel resistance (Rp) and inductance (L) measurements. Inductive sensing technology enables precise measurement of linear or angular position of metal targets in automotive and industrial applications.

Inductive sensing is a contactless, short-range sensing technology that can enable high-resolution sensing of conductive targets in the presence of dust, dirt, oil, and moisture, which can be used by applications in harsh environments.

The LDC1001 system consists of an inductive sensor, typically a PCB coil, and a conductive target.

The LDC1001 is available in a 16-pin WSON package and offers several modes of operation. A serial peripheral interface (SPI) simplifies connection to an MCU.

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Technical documentation

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Type Title Date
* Datasheet LDC1001 Inductance-to-Digital Converter datasheet Nov. 21, 2019
Application notes Common Inductive and Capacitive Sensing Applications (Rev. A) Mar. 30, 2020
User guides LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module User's Guide (Rev. B) Nov. 15, 2019
Application notes LDC100x Temperature Compensation (Rev. A) Nov. 12, 2019
Application notes Using Multiple Sensors With LDC100x (Rev. A) Nov. 12, 2019
Application notes Configuring Inductive-to-Digital-Converters for Parallel Resistance (RP) Variati (Rev. B) Nov. 11, 2019
Application notes LDC Device Selection Guide (Rev. C) Nov. 11, 2019
Application notes Performing L Measurements from LDC DRDY Timing (Rev. A) Nov. 11, 2019
Application notes LDC Sensor Design (Rev. B) Nov. 08, 2019
Application notes LDC1xxx LDC Target Design (Rev. A) May 09, 2017
Application notes Measuring Rp of an L-C Sensor for Inductive Sensing Oct. 01, 2015

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description

The LDC1000EVM (Evaluation Module) demonstrates the use of inductive sensing technology to sense and measure the presence, position or composition of a conductive target object. The module includes an example of a PCB sensor coil. An MSP430 microcontroller is used to interface the LDC to a host (...)

Features
  • Two board perforations: provide maximum evaluation and system design flexibility
  • Includes an example of a PCB sensor coil
  • Operates standalone or via PC
  • Accompanying GUI for quick concept demonstration and data capture
  • EVM design accelerates prototyping of end application

CAD/CAE symbols

Package Pins Download
WSON (NHR) 16 View options

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