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  • REF3020 - Max Input Voltage

    Resolved
    Other Parts Discussed in Thread: REF3020 For the REF3020AIDBZ part, the datasheet says the absolute max input voltage is 7V, and everything mentions a typical Vin of 5V, but can we can operate the part without any negative effects all the way up to 7V,…
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    • Answered

  • TMS320F280049: F280049 ADC internal reference, what's it?

    Resolved
    Part Number: TMS320F280049 Other Parts Discussed in Thread: REF3020 Hi, Customer would like to know what the reference is. Is it something like ref3020? Thanks a lot. Br, Jordan
    • Resolved

  • Compiler/LMP91000: Issue to connect gas sensor AFE with LMP7721

    TI Thinks Resolved
    Part Number: LMP91000 Other Parts Discussed in Thread: LMP7721 , LM4040 , HDC2010 , HDC2080 , REF3020 , REF3120 Tool/software: TI C/C++ Compiler Hello Community, I configured my hardware using LMP91000 and LMP7721 as shown in thread, Also, I used equation…
    • Answered

  • REF3120: output voltage low

    Resolved
    Part Number: REF3120 Other Parts Discussed in Thread: TMS320F28335 , REF3020 , REF3320 Hi, My customer is using REF3120 as the voltage reference of TMS320F28335. The final product is a solar inverter. They observed around 1.99V instead of 2.048V for about…
    • Resolved

  • TMS320F28335: undefined ADC tolerances

    TI Thinks Resolved
    Part Number: TMS320F28335 Other Parts Discussed in Thread: REF3020 Hi champs, customer found some abnormality by measuring internal volatge in series production by ADC of TMS320F28335ZJZQ. So they tested boards with a defined input volatge 1.5V: First…
    • Answered

  • REF30XX precision voltage reference decoupling

    Resolved
    Other Parts Discussed in Thread: REF3020 The datasheet recommends a 0.47uF decoupling capacitor for the REF30XX (specifically REF3020 in my case). I'm wondering why that particular value was recommended instead of, say, 0.1uF, which is more common. Using…
    • Resolved

  • ADC calibration

    Other Parts Discussed in Thread: REF3020 , CONTROLSUITE Hi, I'm using Piccolo and I need to make a very precise measurement. So I'm trying to calibrate the ADC. I've read in some TI document about a technique that uses 2 ADC inputs to measure 2 known voltages…
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  • ADS1246 Reference Voltage

    Resolved
    Other Parts Discussed in Thread: ADS1246 , REF3020 , ADS1247 , REF5020 Hi everyone. I have some doubts about ADS1246 reference voltage. I have DVDD and AVDD connected to 3.3V. DGND and AVSS are connected to GND (0V). I have understood that Vref should be "(AVDD…
    • Resolved

  • question regarding the fluctuating of AD conversion result

    Other Parts Discussed in Thread: REF3020 In my case, a constant voltage with a value of 2.048 generated by REF3020 is connected directly to one AD pin. However, the conversion result of AD fluctuates between 2080 and 2096 when refleshing the watch window…
    • Answered

  • TLC2574 Offset error condition

    Resolved
    Other Parts Discussed in Thread: REF3020 , TLC2574 , REF3040 We have a design that is using the TLC2574 in single ended mode. We seem to be seeing a positive offset of ~ 50-100 mV on our expected readings at normal room temperatures. This relates to 10-20…
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