產品詳細資料

Number of input channels 4 Features Integrated shield drivers Operating temperature range (°C) -40 to 125 Vs (min) (V) 3 Vs (max) (V) 3.6 Interface type I2C Resolution (Bits) 24 Rating Catalog
Number of input channels 4 Features Integrated shield drivers Operating temperature range (°C) -40 to 125 Vs (min) (V) 3 Vs (max) (V) 3.6 Interface type I2C Resolution (Bits) 24 Rating Catalog
WSON (DSC) 10 9 mm² (3 mm × 3 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Input range: ±15pF
  • Measurement resolution: 0.5fF
  • Maximum offset capacitance: 100pF
  • Programmable output rates: 100/200/400 S/s
  • Maximum shield load: 400pF
  • Supply voltage: 3.3V
  • Temp range: –40° to 125°C
  • Current consumption:
    • Active: 750µA
    • Standby: 29µA
  • Interface: I2C
  • Number of channels: 4
  • Input range: ±15pF
  • Measurement resolution: 0.5fF
  • Maximum offset capacitance: 100pF
  • Programmable output rates: 100/200/400 S/s
  • Maximum shield load: 400pF
  • Supply voltage: 3.3V
  • Temp range: –40° to 125°C
  • Current consumption:
    • Active: 750µA
    • Standby: 29µA
  • Interface: I2C
  • Number of channels: 4

Capacitive sensing with grounded capacitor sensors is a very low-power, low-cost, high-resolution contact-less sensing technique that can be applied to a variety of applications ranging from proximity sensing and gesture recognition to material analysis and remote liquid level sensing. The sensor in a capacitive sensing system is any metal or conductor, allowing for low cost and highly flexible system design.

The FDC1004 is a high-resolution, 4-channel capacitance-to-digital converter for implementing capacitive sensing solutions. Each channel has a full scale range of ±15pF and can handle a sensor offset capacitance of up to 100pF, which can be either programmed internally or can be an external capacitor for tracking environmental changes over time and temperature. The large offset capacitance capability allows for the use of remote sensors.

The FDC1004 also includes shield drivers for sensor shields, which can reduce EMI interference and help focus the sensing direction of a capacitive sensor. The small footprint of the FDC1004 allows for use in space-constrained applications. The FDC1004 is available in a 10-pin WSON and VSSOP package and features an I2C interface for interfacing to an MCU.

Capacitive sensing with grounded capacitor sensors is a very low-power, low-cost, high-resolution contact-less sensing technique that can be applied to a variety of applications ranging from proximity sensing and gesture recognition to material analysis and remote liquid level sensing. The sensor in a capacitive sensing system is any metal or conductor, allowing for low cost and highly flexible system design.

The FDC1004 is a high-resolution, 4-channel capacitance-to-digital converter for implementing capacitive sensing solutions. Each channel has a full scale range of ±15pF and can handle a sensor offset capacitance of up to 100pF, which can be either programmed internally or can be an external capacitor for tracking environmental changes over time and temperature. The large offset capacitance capability allows for the use of remote sensors.

The FDC1004 also includes shield drivers for sensor shields, which can reduce EMI interference and help focus the sensing direction of a capacitive sensor. The small footprint of the FDC1004 allows for use in space-constrained applications. The FDC1004 is available in a 10-pin WSON and VSSOP package and features an I2C interface for interfacing to an MCU.

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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 FDC1004 4-Channel Capacitance-to-Digital Converter for Capacitive Sensing Applications datasheet (Rev. C) PDF | HTML 2024/10/10
使用指南 Input Resistance Error for Current Sense Amplifiers PDF | HTML 2024/7/12
應用說明 FDC1004: Basics of Capacitive Sensing and Applications (Rev. A) 2021/6/23
應用說明 Common Inductive and Capacitive Sensing Applications (Rev. B) PDF | HTML 2021/6/22
應用說明 Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) PDF | HTML 2021/6/16
應用說明 How to Calibrate FDC1004 for Liquid Level Sensing Applications 2016/10/24
EVM User's guide FDC1004 User's Guide (Rev. C) PDF | HTML 2016/10/20
技術文章 Capacitive sensing: simple algorithm for proximity sensing PDF | HTML 2015/11/23
技術文章 Capacitive sensing: which architecture should you choose? PDF | HTML 2015/10/20
應用說明 Capacitive Sensing: Direct vs Remote Liquid Level Sensing Performance Analysis (Rev. A) 2015/7/24
技術文章 What are you sensing? A novel approach for capacitive-based liquid-level sensing PDF | HTML 2015/6/25
應用說明 Liquid Level Sensing with the Immersive Straw Approach 2015/6/19
應用說明 Capacitive Proximity Sensing Using the FDC1004 (Rev. A) 2015/4/26
應用說明 Capacitive Sensing: Ins and Outs of Active Shielding (Rev. A) 2015/2/12
應用說明 Capacitive Sensing: Out-of-Phase Liquid Level Technique 2015/1/27
使用指南 FDC1004 GUI User's Guide 2014/6/27

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

FDC1004EVM — FDC1004EVM - 四通道電容轉數位轉換器評估模組

FDC1004 評估模組 (EVM) 是用於評估 FDC1004 4 通道電容轉數位轉換器的平台。此評估模組採用由三個部分組成的可斷開 PCB:以 MSP430F5528 微控制器為基礎的 USB 轉 I²C 轉換器,以及兩個展示 FDC1004 靈敏度的感測器電極。此感測器可移除並替換為針對您特定應用設計的自訂感測器,評估模組的 GUI 可用於設定 FDC1004 暫存器,並以四張獨立圖表顯示測量的電容值。

評估步驟

步驟 1:購買 FDC1004EVM

步驟 2:下載 FDC1004EVM 使用指南感測解決方案 GUI

步驟 3:下載並檢視其他建議內容

使用指南: PDF | HTML
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程式碼範例或展示

SNVC187 — Capacitive Sensing Sample Code (Energia) v1.1

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開發模組 (EVM) 的 GUI

SNOC028 — Sensing Solutions EVM GUI Tool v1.10.0

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模擬型號

FDC1004 IBIS Model (Rev. A)

SNAM168A.ZIP (13 KB) - IBIS 模型
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參考設計

TIDA-00220 — 適用於系統喚醒及中斷的電容式人體近距離偵測參考設計

此參考設計運用我們的電容轉數位轉換器技術,提供高精密度方法,可在發生人體互動時喚醒系統。TIDA-00220 展示替代感測器設計、環境補償與電磁干擾防護的技術。

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參考設計

TIDA-00317 — 電容架構液面偵測感測器參考設計

此參考設計使用 FDC1004EVM,可提供穩固且精確的電容式液位感測。TIDA-00317 示範感測器設計與配置設定,可減少系統環境的寄生電容干擾。

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參考設計

TIDA-00373 — 透過環境光與近距感測器執行背光及智慧照明控制的參考設計

此系統可根據環境光亮度動態調整背光亮度,從而節省電力並延長背光壽命。  當使用者靠近時,電容式接近感測器會喚醒系統,以節省更多電力。

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參考設計

TIDA-00506 — 汽車電容近距離踢蹴開啟偵測參考設計

此參考設計展示了使用我們的 FDC1004 評估模組 (EVM) 的近距靈敏度,用於汽車塑膠保險桿內的腳體開啟應用。該設計還展示了測試結果,包括將保險桿暴露在泥水環境中,以瞭解常見環境因素的影響。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DSC) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian

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