產品詳細資料

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 x 3
  • 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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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet LDC1101 1.8-V High-Resolution, High-Speed Inductance-to-Digital Converter datasheet (Rev. D) PDF | HTML 2016年 10月 3日
Application note Common Inductive and Capacitive Sensing Applications (Rev. B) PDF | HTML 2021年 6月 22日
Application note Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) PDF | HTML 2021年 6月 16日
Application note LDC Device Selection Guide (Rev. D) PDF | HTML 2021年 6月 15日
Application note Sensor Design for Inductive Sensing Applications Using LDC (Rev. C) PDF | HTML 2021年 5月 21日
Application note LDC Target Design (Rev. B) PDF | HTML 2021年 5月 13日
Application note EMI Considerations for Inductive Sensing 2017年 2月 22日
Technical article How to use the LDC calculations tool PDF | HTML 2016年 11月 10日
Technical article Did you know inductive proximity sensing can be implemented with a single chip? PDF | HTML 2016年 4月 25日
Application note Setting LDC1312/4, LDC1612/4, and LDC1101 Sensor Drive Configuration 2016年 4月 5日
Application note Optimizing L Measurement Resolution for the LDC161x and LDC1101 2016年 2月 12日
Technical article Inductive sensing: target size matters PDF | HTML 2015年 11月 16日
Application note Measuring Rp of an L-C Sensor for Inductive Sensing 2015年 10月 1日

設計與開發

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開發板

LDC1101EVM — LDC1101 1.8V、高解析度電感轉數位轉換器評估模組

LDC1101 評估模組展示可用於感測和測量導電性目標是否存在的電感感測技術。評估板包含一個連接至 LDC1101 的範例 PCB 感測器線圈。MSP430 微控制器用於將 LDC 介接至主機電腦。此模組旨在為使用者提供最大的彈性,以進行系統原型設計。其在兩個位置設有折斷槽:第一處位於 PCB 感測器線圈(LC 儲能電路)與 LDC1101 之間,第二處位於 LDC1101 與 MSP430 介面之間。第一個穿孔可讓使用者選擇從模組中拆下 PCB 線圈,並使用自訂感測器線圈進行實驗,第二個穿孔則可讓使用者將 (...)
使用指南: PDF
TI.com 無法提供
開發模組 (EVM) 的 GUI

SNOC028 Sensing Solutions EVM GUI Tool v1.10.0

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模擬型號

LDC1101 IBIS MODEL

SNIM009.ZIP (50 KB) - IBIS Model
計算工具

LDC-CALCULATOR-TOOLS Inductive Sensing Design Calculator Tool

The inductive sensing calculator tools provide two Excel spreadsheets to assist in the design process for inductive-to-digital converter (LDC) devices. These tools provide coil design assistance as well as some device-specific configurations.

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參考設計

TIDA-00563 — 電感式近距開關 BoosterPack 參考設計

TIDA-00563 提供高度整合的類比前端 (AFE) 電感數位轉換器 (LDC),專為工業級近距感測器而最佳化,適用於非接觸式和穩健的應用,例如存在偵測和事件計數。即使在有灰塵、油污或處於潮濕環境的情況下,電感式感測技術也能提供可靠、準確的感測,使其成為惡劣或骯髒環境下的理想選擇。此參考設計使用 1.8V 至 3.3V 高解析度、高速電感數位轉換器,提供可編程的決策閾值設定和寬廣的感測器頻率範圍。此設計的目的是讓您在將我們的 LDC、超低功耗 MCU (...)
使用指南: PDF
電路圖: PDF
參考設計

TIDA-00460 — 感應式線性位置感測 Booster Pack 參考設計

遠距離量測的典型實作使用昂貴的稀土磁鐵。為了降低整體系統成本,此參考設計詳細介紹如何使用 TI 的業界首款電感數位轉換器進行線性位置感測的實作,無需使用任何昂貴的稀土磁鐵。線性位置感測是透過偵測目標物在產生磁場的電感式感測器前方橫向移動時的位置來實現的。如 LDC1000 或 LDC1101 等電感數位轉換器 (LDC) 能夠偵測靠近導電目標(例如金屬塊)的電感器的電感變化。LDC 測量這種電感偏移,以提供有關導電目標在感測器線圈上方具體位置的資訊。電感偏移是由感測器磁場在目標中產生的渦電流引起的。這些渦電流會產生一個與感測器磁場方向相反的次級磁場,從而導致觀測到的電感偏移。
使用指南: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON (DRC) 10 Ultra Librarian

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