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FDC1004 Fiches technique(PDF) 1 Page - Texas Instruments |
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FDC1004 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 33 page 3.3 V 3.3 V 3.3 V 3.3 V I2C Peripheral MCU GND VDD ENVIRONMENTAL SENSOR LIQUID SENSOR LEVEL SENSOR OFFSET & GAIN CALIBRATION EXCITATION FDC1004 CAPACITANCE TO DIGITAL CONVERTER CHA MUX CHB MUX CAPDAC SHLD1 SHLD2 CIN1 CIN2 CIN3 CIN4 I 2C CONFIGURATION & DATA REGISTERS SCL SDA GND VDD CHA CHB 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 3 Description Capacitive sensing with grounded capacitor sensors 1 • Input Range: ±15 pF is a very low-power, low-cost, high-resolution contact- • Measurement Resolution: 0.5 fF less sensing technique that can be applied to a • Maximum Offset Capacitance: 100 pF variety of applications ranging from proximity sensing and gesture recognition to material analysis and • Programmable Output Rates: 100/200/400 S/s remote liquid level sensing. The sensor in a • Maximum Shield Load: 400 pF capacitive sensing system is any metal or conductor, • Supply Voltage: 3.3 V allowing for low cost and highly flexible system design. • Temp Range: –40° to 125°C • Current Consumption: The FDC1004 is a high-resolution, 4-channel capacitance-to-digital converter for implementing – Active: 750 µA capacitive sensing solutions. Each channel has a full – Standby: 29 µA scale range of ±15 pF and can handle a sensor offset • Interface: I2C capacitance of up to 100 pF, which can be either • Number of Channels: 4 programmed internally or can be an external capacitor for tracking environmental changes over time and temperature. The large offset capacitance 2 Applications capability allows for the use of remote sensors. • Proximity Sensor The FDC1004 also includes shield drivers for sensor • Gesture Recognition shields, which can reduce EMI interference and help • Automotive Door / Kick Sensors focus the sensing direction of a capacitive sensor. • Automotive Rain Sensor The small footprint of the FDC1004 allows for use in space-constrained applications. The FDC1004 is • Remote and Direct Liquid Level Sensor available in a 10-pin WSON and VSSOP package • High-resolution Metal Profiling and features an I2C interface for interfacing to an • Rain / Fog / Ice / Snow Sensor MCU. • Material Size Detection Device Information(1) • Material Stack Height PART NUMBER PACKAGE BODY SIZE (NOM) WSON (DSC) 3.0 mm x 3.0 mm FDC1004 VSSOP (DGS) 3.0 mm x 3.0 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Typical Application 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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