LDC1612
- Easy-to-Use – Minimal Configuration Required
- Up to 4 Channels With Matched Sensor Drive
- Multiple Channels Support Environmental and Aging Compensation
- Remote Sensor Position of >20 cm Supports Operation In Harsh Environments
- Pin-Compatible Medium and
High-Resolution Options:
- LDC1312/4: 2/4-ch 12-Bit LDC
- LDC1612/4: 2/4-ch 28-Bit LDC
- Sensing Range Beyond Two Coil Diameters
- Supports Wide Sensor Frequency Range of 1 kHz to 10 MHz
- Power
Consumption:
- 35 µA Low Power Sleep Mode
- 200 nA Shutdown Mode
- 2.7 V to 3.6 V Operation
- Multiple Reference Clocking Options:
- Included Internal Clock For Lower System Cost
- Support for 40 MHz External Clock For Higher System performance
- Immunity to DC Magnetic Fields and Magnets
The LDC1612 and LDC1614 are 2- and 4-channel, 28-bit inductance to digital converters (LDCs) for inductive sensing solutions. With multiple channels and support for remote sensing, the LDC1612 and LDC1614 enable the performance and reliability benefits of inductive sensing to be realized at minimal cost and power. The products are easy to use, only requiring that the sensor frequency be within 1 kHz and 10 MHz to begin sensing. The wide 1 kHz to 10 MHz sensor frequency range also enables use of very small PCB coils, further reducing sensing solution cost and size.
The high resolution channels allow for a much larger sensing range, maintaining good performance beyond two coil diameters. Well-matched channels allow for differential and ratiometric measurements, which enable designers to use one channel to compensate their sensing for environmental and aging conditions such as temperature, humidity, and mechanical drift.
Given their ease of use, low power, and low system cost these products enable designers to greatly improve performance, reliability, and flexibility over existing sensing solutions and to introduce brand new sensing capabilities to products in all markets, especially consumer and industrial applications.
These devices are easily configured via an I2C interface. The two-channel LDC1612 is available in a WSON-12 package and the four-channel LDC1614 is available in a WQFN-16 package.
技術文件
設計與開發
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LDC1612EVM — 適用於電感轉數位轉換器且具有樣本 PCB 線圈的 LDC1612 評估模組
LDC1612 評估模組會展示如何使用電感感測技術來感測和測量導電性目標物的存在、位置或成分。此模組包含兩個範例 PCB 感測器線圈，可分別連接至 LDC1612 兩個通道。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 LDC1612 之間，第二處位於 LDC1612 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 LDC1612 (...)
LDCCOILEVM — 參考線圈板評估模組
LDCCOILEVM 旨在為系統原型設計提供最大的彈性，並可利用不同線圈尺寸進行實驗。其包括 19 種獨特類型的 PCB 線圈，從長矩形不對稱線圈，到直徑為 3mm 的小型圓形線圈等，都包含在內。每個線圈皆能以穿孔分離，讓使用者可輕鬆將所需部分從主機板上拆下，並將其作為搭配我們電感感測裝置的遠端感測器使用。
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-00314 — 具有整合式觸覺回饋的金屬按鈕觸碰感測參考設計
此參考設計運用我們的電感數位轉換器技術，提供高精密度的方法來感測金屬表面按鈕按壓動作，而我們的觸覺驅動器則可為使用者提供高品質的觸覺回饋。TIDA-00314 展示系統設計、環境補償與電磁干擾防護的技術。
觀看金屬觸控按鈕上具有整合式觸覺回饋的 TIDA-00314 概覽影片。
TIDA-00508 — 使用 LDC1314 電感轉數位轉換器的 1 度旋鈕參考設計
TIDA-00509 — 使用 LDC1314 電感轉數位轉換器的 16 按鈕電感式鍵盤參考設計
TIDM-INDUCTIVELINEAR — ESI + LDC感應式線性位置感測參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DNT) | 12 | 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。