FDC1004

ACTIVO

Convertidor de capacitancia a digital de 4 canales y 16 bits con controlador de escudo activo para p

Detalles del producto

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
VSSOP (DGS) 10 14.7 mm² 3 x 4.9 WSON (DSC) 10 9 mm² 3 x 3
  • 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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet FDC1004 4-Channel Capacitance-to-Digital Converter for Capacitive Sensing Applications datasheet (Rev. C) PDF | HTML 10 oct 2024
User guide Input Resistance Error for Current Sense Amplifiers PDF | HTML 12 jul 2024
Application note FDC1004: Basics of Capacitive Sensing and Applications (Rev. A) 23 jun 2021
Application note Common Inductive and Capacitive Sensing Applications (Rev. B) PDF | HTML 22 jun 2021
Application note Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) PDF | HTML 16 jun 2021
Application note How to Calibrate FDC1004 for Liquid Level Sensing Applications 24 oct 2016
EVM User's guide FDC1004 User's Guide (Rev. C) PDF | HTML 20 oct 2016
Technical article Capacitive sensing: simple algorithm for proximity sensing PDF | HTML 23 nov 2015
Technical article Capacitive sensing: which architecture should you choose? PDF | HTML 20 oct 2015
Application note Capacitive Sensing: Direct vs Remote Liquid Level Sensing Performance Analysis (Rev. A) 24 jul 2015
Technical article What are you sensing? A novel approach for capacitive-based liquid-level sensing PDF | HTML 25 jun 2015
Application note Liquid Level Sensing with the Immersive Straw Approach 19 jun 2015
Application note Capacitive Proximity Sensing Using the FDC1004 (Rev. A) 26 abr 2015
Application note Capacitive Sensing: Ins and Outs of Active Shielding (Rev. A) 12 feb 2015
Application note Capacitive Sensing: Out-of-Phase Liquid Level Technique 27 ene 2015
User guide FDC1004 GUI User's Guide 27 jun 2014

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

FDC1004EVM — Módulo de evaluación FDC1004EVM de convertidor capacitivo a digital de 4 canales

El módulo de evaluación FDC1004 se usa para evaluar el convertidor capacitivo a digital FDC1004 de 4 canales. Los módulos de evaluación presentan una placa de circuito impreso (PCB) divisible compuesta por tres secciones: un convertidor USB a I²C basado en el microcontrolador MSP430F5528, el (...)

Guía del usuario: PDF | HTML
Ejemplo de código o demostración

SNVC187 Capacitive Sensing Sample Code (Energia) v1.1

Productos y hardware compatibles

Productos y hardware compatibles

GUI para el módulo de evaluación (EVM)

SNOC028 Sensing Solutions EVM GUI Tool v1.10.0

Productos y hardware compatibles

Productos y hardware compatibles

Modelo de simulación

FDC1004 IBIS Model (Rev. A)

SNAM168A.ZIP (13 KB) - IBIS Model
Diseños de referencia

TIDA-00317 — Diseño de referencia del sensor de detección de nivel de líquido capacitivo

Este diseño de referencia, que utiliza FDC1004EVM, proporciona una detección de nivel de líquido capacitiva robusta y precisa. TIDA-00317 demuestra el diseño y la configuración del sensor para mitigar las interferencias de capacitancia parásitas del entorno del sistema.
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00373 — Diseño de referencia del control inteligente de retroiluminación e iluminación mediante luz ambienta

This system conserves power and extends backlight life by dynamically adjusting the backlight brightness relative to the environment's ambient light.  A capacitive proximity sensor wakes up the system when a user is close to save even more power.

 

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Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00506 — Diseño de referencia de detección de tocar para abrir de proximidad capacitiva de calidad automotriz

This reference design showcases proximity sensitivity using our FDC1004 evaluation module (EVM) for an automotive kick-to-open application within a plastic bumper. This design also showcases test results that include exposure to mud and water on the bumper to determine the impact of common (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

TIDA-00220 — Diseño de referencia de detección de proximidad humana capacitiva para la activación y la interrupci

This reference design uses our capacitive-to-digital converter technology to provide a high-precision method to wake up systems when human interaction occurs. TIDA-00220 demonstrates techniques for an alternative sensor design, environmental compensation and electromagnetic interference protection.
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSSOP (DGS) 10 Ultra Librarian
WSON (DSC) 10 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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