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  • OPA820: pulse fall-time is getteing reduced using 8-to-1 inverting summing amplifier with OPA820

    Part Number: OPA820 Tool/software: Hello I have built an 8-to-1 inverting summing amplifier using OPA820 where, R_f = R = 1K (unity gain). However, I can see a reduction in pulse fall-time which I don't understand. Does anyone who the reason?…
    • Answered

  • OPA820: CMRR characterization

    Resolved
    Part Number: OPA820 Dear e2e support, Could you clarify what's the frequency used to get the CMRR performances page 6 and 8 of our datasheet; and what's the schematic used to get the plot of Figure 17? Can we provide other CMRR plots, vs frequency…
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  • OPA820: Input offset voltage gets doubled for unity gain

    Resolved
    Part Number: OPA820 Hello All, I am performing the worst case calculation for input offset voltage of OPA820 for unity gain circuit . Datsheet says the offset voltage is +/- 1.2mV for -40C to +85C range. Since its unity gain configuration , will…
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  • OPA820: Pspice model issue

    Resolved
    Part Number: OPA820 Other Parts Discussed in Thread: TINA-TI Hi Team, I downloaded the OPA820 spice model, in order to use it with LTSPICE. Working within the datasheet conditions: GAIN=+2, Vout=2Vpp, Supply +/-5V, I have a distorted signal at 10MHz…
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  • OPA820: Settling tome data

    Resolved
    Part Number: OPA820 Other Parts Discussed in Thread: BUF602 , ADS52J65 Hello. The OPA820 is unity gain stable. Why its settling time data is for G=+2 only? I would like to know for G=1. I addition, why the data is for 0.02% and not for 0.01%? Thanks…
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  • OPA820-HT: OPA820-HT Gold Wiring

    Resolved
    Part Number: OPA820-HT I have customer asking if he can use gold wiring to the OPA820-HT. This does not seem to be an issue with me, but I wanted to confirm this with the factory engineers to verify that this will not be an issue. Thanks for your help…
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  • OPA820: Design Methodology for MFB Filters

    Resolved
    Part Number: OPA820 Other Parts Discussed in Thread: OPA317 Hello, I'm using the document " www.ti.com/lit/an/sboa114/sboa114.pdf " "Design Methodology for MFB Filters in ADC Interface" to design a 2nd order Low-pass filter with a gain of 1 and Fc = 15KHz…
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  • RE: OPA820: High current output (46mA) rising edge slew rate

    Resolved
    Hello sima, I hope it works this time, Figure1, (C1) OPA820 -Output at J2 Demo-board, (C2) wafeform generator at J1 Demo-Board Figure2: expected pulse response ( OPA820 Data Sheet)
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  • OPA820: Is it typo? at Electrical Characteristics : Vs = 5V

    Resolved
    Part Number: OPA820 Hello, Just to be sure, let me check. I checked the quiescent current of the OPA820 with 5V operation. It is mentioned " Vs = +/- 5V" at the TEST CONDITION of the Quiescent Current spec. on the datasheet. Is it typo? Regards…
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  • OPA820 noise at 10+ MHz

    Resolved
    Other Parts Discussed in Thread: OPA820 Hi, The datasheet for OPA820 gives noise curves only to 10 MHz although the part has gain out to several hundred MHz. Does the noise remain flat above 10 MHz? Using the PSpice model I seem to see the noise rising…
    • Resolved

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