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FDC1004-Q1

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Automotive, 4-channel 16-bit capacitance-to-digital converter with active shield driver for EMC

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Data sheet

FDC1004-Q1

ACTIVE
Data sheet Order now

Product details

Number of input channels 4 Features Integrated shield drivers Operating temperature range (°C) -40 to 125 Interface type I2C Resolution (bps) 24 Rating Automotive, Catalog
Number of input channels 4 Features Integrated shield drivers Operating temperature range (°C) -40 to 125 Interface type I2C Resolution (bps) 24 Rating Automotive, Catalog
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Input Range: ±15 pF
  • Measurement Resolution: 0.5 fF
  • Maximum Offset Capacitance: 100 pF
  • Programmable Output Rates: 100/200/400 S/s
  • Maximum Shield Load: 400 pF
  • Supply Voltage: 3.3 V
  • Temp Range: –40° to 125°C
  • Current Consumption:
    • Active: 750 µA
    • Standby: 29 µA
  • Interface: I2C
  • Number of Channels: 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Input Range: ±15 pF
  • Measurement Resolution: 0.5 fF
  • Maximum Offset Capacitance: 100 pF
  • Programmable Output Rates: 100/200/400 S/s
  • Maximum Shield Load: 400 pF
  • Supply Voltage: 3.3 V
  • Temp Range: –40° to 125°C
  • Current Consumption:
    • Active: 750 µA
    • Standby: 29 µA
  • 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 FDC1004Q is a high-resolution, AEC-Q100 qualified, 4-channel capacitance-to-digital converter for implementing capacitive sensing solutions. Each channel has a full scale range of ±15 pF and can handle a sensor offset capacitance of up to 100 pF, 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 FDC1004Q 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 FDC1004Q allows for use in space-constrained applications. The FDC1004Q is available in a 10-pin VSSOP package, which allows for optical inspection in production, 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 FDC1004Q is a high-resolution, AEC-Q100 qualified, 4-channel capacitance-to-digital converter for implementing capacitive sensing solutions. Each channel has a full scale range of ±15 pF and can handle a sensor offset capacitance of up to 100 pF, 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 FDC1004Q 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 FDC1004Q allows for use in space-constrained applications. The FDC1004Q is available in a 10-pin VSSOP package, which allows for optical inspection in production, and features an I2C interface for interfacing to an MCU.
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Technical documentation

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Type Title Date
* Data sheet FDC1004Q 4-Channel Capacitance-to-Digital Converter for Capacitive Sensing Solutions datasheet PDF | HTML 30 Apr 2015
User guide Input Resistance Error for Current Sense Amplifiers PDF | HTML 12 Jul 2024
Application note Automotive Door Handle Design with Position Sensors PDF | HTML 10 Apr 2024
Application brief Automotive Door Handle Module Using Hall, Inductive and Capacitive Sensors PDF | HTML 29 Nov 2023
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
Application note Capacitive Sensing: Direct vs Remote Liquid Level Sensing Performance Analysis (Rev. A) 24 Jul 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 Apr 2015
EVM User's guide FDC1004-Q1 EVM User Guide 31 Mar 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 Jan 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

FDC1004QEVM — Automotive 4-Channel Capacitive to Digital Converter Evaluation Module

The FDC1004Q evaluation module is used to evaluate the FDC1004-Q1, automotive 4-channel capacitive-to-digital converter. The evaluation modules features a breakable PCB composed of three sections: a USB to I²C converter based on the MSP430F5528 microcontroller, the FDC1004-Q1, and two sensor (...)

User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

SNOC028 — Sensing Solutions EVM GUI Tool v1.10.0

Supported products & hardware

Supported products & hardware

Products
Humidity sensors
HDC1000 — Low Power, 3% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor HDC1050 — ±3% low-power, digital humidity sensor with temperature sensor HDC2010 — 2% RH ultra-small, low-power digital relative humidity sensor HDC2080 — 2% RH ultra-low-power digital relative humidity sensor, interrupt/DRDY
Inductive sensor AFEs
LDC1001-Q1 — Automotive, 5V, grade-0, Inductance to Digital Converter LDC1041 — 1-Ch, 5V, 24-bit L, 8-bit Rp, inductance to digital converter LDC1051 — 1-Ch, 5V, 8-bit Rp, inductance to digital converter LDC1101 — 1-Ch, 1.8V, 24-bit L, 16-bit Rp, inductance to digital converter for high speed applications LDC1312 — 2-Ch, 12-bit, general purpose inductance to digital converter LDC1312-Q1 — 2-Ch, 12-bit, general purpose automotive inductance to digital converter LDC1314 — 4-Ch, 12-bit, general purpose inductance to digital converter LDC1314-Q1 — 4-Ch, 12-bit, general purpose automotive inductance to digital converter LDC1612 — 2-Ch, 28-bit, high-resolution Inductance to digital converter LDC1612-Q1 — 2-Ch, 28-bit, high-resolution automotive inductance to digital converter LDC1614 — 4-Ch, 28-bit, high-resolution Inductance to digital converter LDC1614-Q1 — 4-Ch, 28-bit, high-resolution automotive inductance to digital converter LDC2112 — 2-Ch inductance to digital converter with baseline tracking for low power touch buttons LDC2114 — 4-Ch inductance to digital converter with baseline tracking for low power touch buttons
Signal conditioners
FDC1004 — 4-channel 16-bit capacitance-to-digital converter with active shield driver for EMC protection FDC1004-Q1 — Automotive, 4-channel 16-bit capacitance-to-digital converter with active shield driver for EMC FDC2112 — 2-Ch, 12-bit, capacitance to digital converter FDC2112-Q1 — 2-Ch, 12-bit, automotive capacitance to digital converter FDC2114 — 4-Ch, 12-bit, capacitance to digital converter FDC2114-Q1 — 4-Ch, 12-bit, automotive capacitance to digital converter FDC2212 — 2-Ch, 28-bit, capacitance to digital converter FDC2212-Q1 — 2-Ch, 28-bit, automotive capacitance to digital converter FDC2214 — 4-Ch, 28-bit, capacitance to digital converter FDC2214-Q1 — 4-Ch, 28-bit, automotive capacitance to digital converter
Hardware development
Evaluation board
FDC1004EVM — FDC1004EVM - 4 Channel Capacitive to Digital Converter Evaluation Module FDC1004QEVM — Automotive 4-Channel Capacitive to Digital Converter Evaluation Module FDC2114EVM — FDC2114 with Two Capacitive Sensors Evaluation Module FDC2214EVM — FDC2214 with Two Capacitive Sensors Evaluation Module HDC1010EVM — HDC1010 Low Power Humidity and Temperature Sensor Evaluation Module HDC1080EVM — HDC1080 low-power humidity and temperature sensor evaluation module HDC2010EVM — HDC2010 Low Power Humidity and Temperature Sensor Evaluation Module HDC2080EVM — HDC2080 Low Power Humidity and Temperature Sensor Evaluation Module LDC1000EVM — LDC1000EVM - Evaluation Module for Inductance to Digital Converter with Sample PCB Coil LDC1312EVM — LDC1312 Evaluation Module for Inductance to Digital Converter with Sample PCB Coils LDC1314EVM — LDC1314 Evaluation Module for Inductance to Digital Converter with Sample PCB Coils LDC1612EVM — LDC1612 Evaluation Module for Inductance to Digital Converter with Sample PCB Coils LDC1614EVM — LDC1614 Evaluation Module for Inductance to Digital Converter with Sample PCB Coils LDC2114EVM — LDC2114 1.8V 4-Channel Inductive Touch Evaluation Module
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Simulation model

FDC1004Q1 IBIS MODEL

SNAM170.ZIP (12 KB) - IBIS Model
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VSSOP (DGS) 10 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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