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FDC1004

Texas Instruments
Part Number FDC1004
Manufacturer Texas Instruments
Description 4-Channel Capacitance-to-Digital Converter
Published Oct 27, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design FDC1004 SNOS...
Datasheet PDF File FDC1004 PDF File

FDC1004
FDC1004

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design FDC1004 SNOSCY5B – AUGUST 2014 – REVISED APRIL 2015 FDC1004 4-Channel Capacitance-to-Digital Converter for Capacitive Sensing Solutions 1 Features •1 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 2 Applications • Proximity Sensor • Gesture Recognition • Automotive Door / Kick Sensors • Automotive Rain Sensor • Remote and Direct Liquid Level Sensor • High-resolution Metal Profiling • Rain / Fog / Ice / Snow Sensor • Material Size Detection • Material Stack Height 3 Description Capacitive sensing with grounded capacitor sensors is a very low-power, low-cost, high-resolution contactless 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 ±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 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 a...


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