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LDC1101

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用于高速应用的单通道、1.8V、24 位电感、16 位谐振器电阻、电感数字转换器

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LDC1101

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产品详情

Applications Metal proximity detection Number of input channels 1 Rating Catalog Vs (max) (V) 3.46 Vs (min) (V) 1.71 Operating temperature range (°C) -40 to 125
Applications Metal proximity detection Number of input channels 1 Rating Catalog Vs (max) (V) 3.46 Vs (min) (V) 1.71 Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² (3 mm × 3 mm)
  • Wide Operating Voltage Range: 1.8 V to 3.3 V
  • Sensor Frequency Range: 500 kHz to 10 MHz
  • RP Resolution: 16-Bit
  • L Resolution: 16- or 24-Bit
  • 180-kSPS Conversion Rate
  • Threshold Detection Functionality
  • 1% Part-to-Part Variation in RP Measurement
  • Supply Current:
    • 1.4-µA Shutdown mode
    • 135-µA Sleep mode
    • 1.9-mA Active Mode (no sensor connected)
  • Sub-Micron Distance Resolution Achievable
  • Remote Sensor Placement Isolating the LDC from Harsh Environments
  • Robust Against Environmental Interferences such as Oil, Water, Dirt, or Dust
  • Minimal External Components
  • Magnet-Free Operation
  • Operating Temperature: –40°C to +125°C
  • Wide Operating Voltage Range: 1.8 V to 3.3 V
  • Sensor Frequency Range: 500 kHz to 10 MHz
  • RP Resolution: 16-Bit
  • L Resolution: 16- or 24-Bit
  • 180-kSPS Conversion Rate
  • Threshold Detection Functionality
  • 1% Part-to-Part Variation in RP Measurement
  • Supply Current:
    • 1.4-µA Shutdown mode
    • 135-µA Sleep mode
    • 1.9-mA Active Mode (no sensor connected)
  • Sub-Micron Distance Resolution Achievable
  • Remote Sensor Placement Isolating the LDC from Harsh Environments
  • Robust Against Environmental Interferences such as Oil, Water, Dirt, or Dust
  • Minimal External Components
  • Magnet-Free Operation
  • Operating Temperature: –40°C to +125°C

The LDC1101 is a 1.8-V to 3.3-V, high-resolution inductance-to-digital converter for short-range, high-speed, contactless sensing of position, rotation, or motion, enabling reliable, accurate measurements even in the presence of dust or dirt, making it ideal for open or harsh environments.

The LDC1101 features dual inductive measurement cores, allowing for > 150 ksps 16-bit RP and L measurements simultaneous with a high-resolution L measurement which can sample at > 180 ksps with a resolution of up to 24 bits. The LDC1101 includes a threshold-compare function which can be dynamically updated while the device is running.

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

The LDC1101 offers these benefits of inductive sensing in a small 3-mm × 3-mm 10-pin VSON package. The LDC1101 can be easily configured by a microcontroller using the 4-pin SPI™.

The LDC1101 is a 1.8-V to 3.3-V, high-resolution inductance-to-digital converter for short-range, high-speed, contactless sensing of position, rotation, or motion, enabling reliable, accurate measurements even in the presence of dust or dirt, making it ideal for open or harsh environments.

The LDC1101 features dual inductive measurement cores, allowing for > 150 ksps 16-bit RP and L measurements simultaneous with a high-resolution L measurement which can sample at > 180 ksps with a resolution of up to 24 bits. The LDC1101 includes a threshold-compare function which can be dynamically updated while the device is running.

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

The LDC1101 offers these benefits of inductive sensing in a small 3-mm × 3-mm 10-pin VSON package. The LDC1101 can be easily configured by a microcontroller using the 4-pin SPI™.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LDC1101 1.8-V High-Resolution, High-Speed Inductance-to-Digital Converter 数据表 (Rev. D) PDF | HTML 2016-10-3
应用手册 常见的电感式和电容式感测应用 (Rev. B) 英语版 (Rev.B) PDF | HTML 2022-6-6
应用手册 采用 LDC 的电感式检测应用的 传感器设计 (Rev. C) PDF | HTML 英语版 (Rev.C) PDF | HTML 2022-2-24
应用手册 LDC 器件选型指南 (Rev. D) 英语版 (Rev.D) PDF | HTML 2021-11-6
应用手册 Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) PDF | HTML 2021-6-16
应用手册 LDC Target Design (Rev. B) PDF | HTML 2021-5-13
应用手册 EMI Considerations for Inductive Sensing 2017-2-22
技术文章 How to use the LDC calculations tool PDF | HTML 2016-11-10
技术文章 Did you know inductive proximity sensing can be implemented with a single chip? PDF | HTML 2016-4-25
应用手册 Setting LDC1312/4, LDC1612/4, and LDC1101 Sensor Drive Configuration PDF | HTML 2016-4-5
应用手册 Optimizing L Measurement Resolution for the LDC161x and LDC1101 PDF | HTML 2016-2-12
技术文章 Inductive sensing: target size matters PDF | HTML 2015-11-16
应用手册 Measuring Rp of an L-C Sensor for Inductive Sensing 2015-10-1

设计与开发

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评估板

LDC1101EVM — LDC1101 1.8V 高分辨率电感至数字转换器评估模块

LDC1101 评估模块演示了用于感应和测量导电目标存在或位置的电感感应技术。评估板包括一个连接至 LDC1101 的示例 PCB 传感器线圈。MSP430 微控制器用于将 LDC 连接到主机。此款模块旨在为用户进行系统原型设计提供更大程度的灵活度。有两个穿孔位置：一个穿孔在 PCB 传感器线圈（LC 振荡槽和 LDC1101）之间，另一个穿孔在 LDC1101 和 MSP430 接口之间。用户可在第一个穿孔处灵活地将 PCB 线圈从模块上取下，并使用定制传感器线圈进行实验；在第二个穿孔处可将 LDC1101 和传感器线圈连接到另一个微控制器系统，或在一个系统中使用多个传感器。随附的 GUI (...)
用户指南: PDF
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评估模块 (EVM) 用 GUI

SNOC028 — Sensing Solutions EVM GUI Tool v1.10.0

支持的产品和硬件
仿真模型

LDC1101 IBIS MODEL

SNIM009.ZIP (50 KB) - IBIS 模型
支持的产品和硬件
计算工具

LDC-CALCULATOR-TOOLS — Inductive Sensing Design Calculator Tool

电感式检测计算器工具提供两个 Excel 电子表格，以帮助完成电感数字转换器 (LDC) 器件的设计过程。这些工具提供线圈设计帮助以及一些特定于器件的配置。

支持的产品和硬件
参考设计

TIDA-00460 — 电感式线性位置感应 Booster Pack 参考设计

距离测量的典型实现方案使用昂贵的稀土磁体。为了降低系统总成本，此参考设计详细介绍了如何实现 TI 先进的电感数字转换器进行线性位置感应，而无需使用任何昂贵的稀土磁体。线性位置感应可确定沿产生磁场的电感式传感器横向移动的目标的位置。电感数字转换器 (LDC)（例如 LDC1000 或 LDC1101）可感应电感器在接近导电目标（例如一块金属）时的电感变化。LDC 通过测量这种电感变化，提供有关传感器线圈上方导电目标的位置信息。电感变化由传感器磁场在目标中产生的涡流所引起。这些涡流会产生与传感器磁场相反的次生磁场，从而导致观察到的电感发生变化。

支持的产品和硬件
参考设计

TIDA-00563 — 电感式接近开关 BoosterPack 参考设计

TIDA-00563 提供高度集成的模拟前端 (AFE) 电感数字转换器 (LDC)，该转换器针对工业接近传感器中的使用进行了优化，适用于非接触式和稳健应用，例如存在检测和事件计数。电感式传感技术即使在有尘土、油污或潮气的环境中也可实现可靠而准确的传感，因此非常适合用于恶劣或脏污的环境。该参考设计使用 1.8V 至 3.3V 高分辨率、高速电感数字转换器，提供可编程决策阈值设置和宽传感器频率范围。该设计考虑周到，可帮助您先人一步将我们的 LDC、超低功耗 MCU (...)

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VSON (DRC) 10 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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