LDC1101
- 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™.
技術文件
設計與開發
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LDC1101EVM — LDC1101 1.8V、高解析度電感轉數位轉換器評估模組
SNOC028 — Sensing Solutions EVM GUI Tool v1.10.0
LDC-CALCULATOR-TOOLS — Inductive Sensing Design Calculator Tool
電感感測計算機工具提供兩份 Excel 試算表，協助電感轉數位轉換器 (LDC) 裝置的設計流程。這些工具可提供線圈設計協助，以及一些裝置特有的設定。
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。
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 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。