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  • FDC2114: Capacitive touch through glass?

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    Part Number: FDC2114 Tool/software: Would this work to detect button presses through glass? Thanks!
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  • FDC2114: Varying capacitance during conversion period

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    Part Number: FDC2114 Tool/software: FDC2114 converts the resonant frequency of the circuit into a digital output. If the capacitance changes during the conversion period, what would be the final output? Is it going to be the average value? In other…
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  • FDC2114: how does the FDC2114 measures

    TI Thinks Resolved
    Part Number: FDC2114 Other Parts Discussed in Thread: FDC1004 Hello, I'm trying to use the FDC2114 for a research project and am able to measure various capacitances. I'm a little puzzled since most of the data sheet images are drawn as single ended…
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  • FDC2114EVM: Connecting FDC2114-EVM to CAPTIVATE-FR2676 and CAPTIVATE-PGMR leads to USB error, is it possible to power the FDC2114 using these boards?

    Resolved
    Part Number: FDC2114EVM Other Parts Discussed in Thread: FDC2114 , CAPTIVATE-FR2676 , CAPTIVATE-PGMR , FDC2214 , FDC1004 Connecting the broken off FDC2114 part to the CAPTIVATE-FR2676 makes the red light on the CAPTIVATE-PGMR go on and stay on after disconnecting…
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  • FDC2114: resonance frequency measurement

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    Part Number: FDC2114 Other Parts Discussed in Thread: FDC2214 , Hello, I've connected the FDC2214 in the following way, with the measurement capacitor in parallel and tested various caps measuring the resonance frequency with an oscilloscope between…
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  • FDC2114: Measuring Capacitance and Inductance with FDC2114

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    Part Number: FDC2114 Other Parts Discussed in Thread: LDC1312 , LDC2114 , LDC3114 , LDC1614 Hello, Since the FDC2114 uses a resonant LC tank, and the resulting resonant frequency to measure capacitance, could I in theory place an inductive sensor…
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  • FDC2114: Is it ok to put a TVS between the sensor and LC ?

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    Part Number: FDC2114 Hi team, My customer use the FDC to measure the liquid level of a plastic tube which my has the static electricity. That high voltage will reset the chip. So they want add a TVS between the sensor and LC to release the static…
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  • FDC2114: Design Tradeoffs when Selecting Resonant L & C

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    Part Number: FDC2114 Hello, Sorry in advanced if this question is a bit broad. I'm using the FDC2114 in a position sensing robotics application where I have two electrodes sliding over one another which forms a variable capacitor (10s of pF nominally…
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  • FDC2114: About FDC2114 schematics

    Resolved
    Part Number: FDC2114 Other Parts Discussed in Thread: FDC2214 , FDC2212 , FDC2112 Hello, Regarding to schematics on FDC2114, my customer is asking a question. (Question) They will refer FDC2214/2114 EVM schematics for design. Each(FDC2214 and…
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  • FDC2114: multiple FDC2214 chips on I2C

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    Part Number: FDC2114 Other Parts Discussed in Thread: FDC2214 Hello Texas Instruments， We are using FDC2214 to detect a capacitive matrix. For a demo, 4 pcs of FDC2214 chips were used to detect 4*4 capacitive sensors(10pf-300pf). 4 chips were…
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