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FDC1004DGSR

TIFDC1004DGSR

Texas Instruments
Four-channel capacitance-to-digital converter alternative for multi-sensor measurement.
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Overview

The FDC1004DGSR is a high-resolution, four-channel capacitance-to-digital converter (CDC) designed for proximity and level sensing applications. It features integrated shield drivers to reduce interference and parasitic capacitance, enabling accurate remote sensing up to 15pF with a 16-bit resolution.

Why Choose This Part

The integrated shield drivers are a significant advantage, as they minimize EMI and parasitic capacitance effects in remote sensor layouts. With a low supply current of 750uA and a compact 10-VSSOP package, it provides a high-performance solution for power-constrained and space-limited designs.

Applications

Liquid Level Sensing
Used in non-contact systems to monitor fluid levels through container walls using differential measurement.
Proximity and Gesture Recognition
Enables wake-on-approach functionality and simple hand gesture controls for consumer electronics or automotive interfaces.
Automotive Kick Sensors
Reliable detection for hands-free trunk opening systems, utilizing the wide -40C to 125C operating temperature range.
Material Profiling
High-resolution detection for metal profiling and moisture analysis in industrial or agricultural environments.

Key Specifications

Type Proximity Only
Interface I2C
Resolution 16 b
Mounting Type Surface Mount
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Current - Supply 750uA
Number of Inputs 4
Voltage - Supply 3V ~ 3.6V
Proximity Detection Yes
Operating Temperature -40degC ~ 125degC
Supplier Device Package 10-VSSOP

Getting Started

Engineers can evaluate the device using the FDC1004EVM evaluation module, which interfaces via USB to TI's Sensing Solutions GUI. Communication is handled over a standard I2C interface, requiring only a 3V to 3.6V supply and basic pull-up resistors for integration into an MCU-based system.

FDC1004 Family

Part NumberDifferenceStock
FDC1004DSCR SCR 505

Also Consider

FDC2214 TITexas Instruments - Offers 28-bit resolution and higher noise immunity for applications requiring extreme precision or longer range.
AD7746 Analog Devices - A high-precision 24-bit CDC often used in industrial weighing and high-end pressure sensing.
CAP1188 MCHPMicrochip - Provides 8 channels of capacitive touch sensing with integrated LED drivers for simpler UI designs.

Categories

Interface ICs > ADC & DAC Consumer Electronics > Touch & Gesture Control Automotive > Automotive Sensors