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  • FDC2214: Data acquisition control

    TI Thinks Resolved
    Part Number: FDC2214 Tool/software: Hi, I'd like to confirm the periodical data acquisition sequence for 3ch sensing. I understand there are 3 ways. Method 1. INTB trigger MCU gets the data ready flag via INTB by setting DRDY_2INT in ERROR_CONFIG(0x19…
    • Answered

  • FDC2214: INxA, INxB connection method

    Resolved
    Part Number: FDC2214 Tool/software: Hi, I'm using FDC2214 EVM. Could you explain how to connect INxA, INxB to capacitor ? According to datasheet of FDC2214, INxA is connected measured capacitor. INxB is connected INxA through L and C. So when I…
    • Resolved

  • FDC2214: Optimal components for resolution and low ambient drift

    TI Thinks Resolved
    Part Number: FDC2214 Other Parts Discussed in Thread: , LDC1612EVM , FDC1004 Tool/software: I'm trying to find the optimal components for using with FDC2214 in the sub-femto-farad range. Namely, the LC tank and reference oscillator. From what I understand…

  • FDC2214: Measurement level consistency is poor

    Part Number: FDC2214 Tool/software: When the FDC2214 is used for single-end input, the capacitance value measured at the same height is inconsistent。How to solve this problem？
    • Answered

  • FDC2214: FDC2214

    Resolved
    Part Number: FDC2214 Other Parts Discussed in Thread: FDC1004 Hello , I am looking for another circuit similar to the FDC 2214/ FDC 2114 that can mesure capacitance from the range of 10pF to 2nF with precision . I had a look at the FDC1004 but it doesnt reach…
    • Resolved

  • RE: FDC2214: Active Shield

    Hello Specia, Glad to know you are able to avoid the interference issue now. Let me know if you run into any further issues.

  • RE: FDC2214: Fdc2214 base capacitance measurement

    Hello Abhijeet, The range of 150-450pF should be doable for the FDC2214. Assuming the same LC tank as the FDC2214EVM (18uH and 33pF), you would be changing your sensor frequency between 2.773MHz and 1.707MHz. To help with noise, you may want to consider…

  • FDC2214EVM: FDC2214 EVM does not working due to incomplete firmware update.

    TI Thinks Resolved
    Part Number: FDC2214EVM Other Parts Discussed in Thread: FDC2214 Tool/software: hello ti, i using fdc2214 evm for experiment , while uploding the firmware through gui usb cable get disconnect accidently now board does not respose ,all hardware is working…

  • RE: FDC2214: FDC2214 gives wrong capacitance when AC pump is turn on and off

    Hi John, I was able to replicate this behavior on my setup, where even when the CHx_ERR_AW bit is set, the ERR_AHW and ERR_ALW bits in the STATUS register is always 0 when I read it. I did notice that in part of the description of the STATUS register…

  • FDC2214-Q1: Is there a lower voltage and current alternative for wearable applications?

    TI Thinks Resolved
    Part Number: FDC2214-Q1 Other Parts Discussed in Thread: FDC2214 The FDC2214 is very effective in our medical device application, but the voltage requirement (2.7V) and current draw (2mA) creates challenges for a wearable device using coin cell batteries…

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