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  • OPA313: How to choose the Vshunt in low side bidirectional current sensing

    Resolved
    Part Number: OPA313 Other Parts Discussed in Thread: LM324-N , TL7726 Hi, Low-side, bidirectional current-sensing circuit | TI.com Video In this training video, I feel confused about the reason to choose Vshunt maximum as 100mV, and also confused about…
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  • OPA313: Confirm top/ device marking

    TI Thinks Resolved
    Part Number: OPA313 Hello, We have used the OPA313IDCKR part in one of our designs. We facing one issue regarding the device/ top marking of this IC. We have checked the datasheet of the IC, but there are mentioned two different device markings of OPA313IDCKR…
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  • OPA313: OPA313, OPA344

    Resolved
    Part Number: OPA313 Dear TI-san, I decided to use a microphone"A" with an output impedance of 5.2kΩ and set resistance of the amplifier input to 3.6kΩ. 3.6kΩ is intended to minimize power supply noise of connected laptop computer…
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    • Answered

  • OPA313: OPA313, OPA344

    Resolved
    Part Number: OPA313 Other Parts Discussed in Thread: OPA344 Dear TI-san, I got OPA313 advice at the links below. https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1072728/opa344-opa344/3976360#3976360 I am in the process of manufacturing…
    • Resolved

  • RE: OPA313: HPF, Background noise

    Dear Michallick-san, Thank you reply. I know that hum noise can be reduced by adding "Auto Gain Control" or "Commander". However, hum noise level is not constant. So I don't think signal processing including your suggestions can…

  • OPA313: High accuracy current sensing under light load

    TI Thinks Resolved
    Part Number: OPA313 Hi Team, My cusromer has a request on current sensing, full load range is ±40A, and the sensing accuracy error needs to be below 1% when the load is within ±5A(light load). Besides, customer needs bidirectional input and…

  • OPA313: Interaction between OPA313 and OPA316 pspice models

    TI Thinks Resolved
    Part Number: OPA313 Other Parts Discussed in Thread: OPA316 , OPA314 , , TINA-TI Current issue is that I am comparing some circuits using OPA313, OPA314, and OPA316 pspice models. If I simulate identical circuits using OPA313 and OPA314 in the same schematic…

  • OPA313: current sensing circuit Vref

    TI Thinks Resolved
    Part Number: OPA313 Hi there. The attachements are given by TI's engineer's cookbook : Amplifier (p57, Low-side, bidirectional current sensing circuit). I don't exactly understand why Vref is needed. It's relevant with the issue of my customer…
    • Answered

  • OPA313: Part Marking

    Resolved
    Part Number: OPA313 In the datasheet for this OPA313 on page 2 the OPA313 (SOT23-5) DBV package has a package marking as "SIF" but on page 21 this OPA313IDBVT (SOT-23) shows deice marking as "SIF". The part (OPA313IDBVT) we received…
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    • Answered

  • OPA313: Stability Analysis of OPA313 circuit

    Resolved
    Part Number: OPA313 Hello, I was wondering what the best way to test the stability of this circuit is since the feedback involves a FET? Would it be best to use the standard method talked about in precision labs or the transient overshoot method? How…
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