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  • OPA859: Feedback resistor value

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    Part Number: OPA859 Hi, On the OPA859 datasheet, there are some recommended values for the feedback resistor. For gains less than 3V/V, Rf should be 150 Ohm. For gains of 4V/V and greater, Rf should be 453 Ohm. Why these values? Can't I use other resistor…
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  • OPA859: Video Buffer Requirement

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    Part Number: OPA859 Other Parts Discussed in Thread: LMH0307 , Hi, I have requirement of HD-SDI video buffer. The Serial Data rate of Video Chip is 1.485GHz and output swing is 900mVpp. Please suggest video buffer for this? Thank You
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  • OPA859: FB pin of OPA859

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    Part Number: OPA859 Hello, I have two questions FB pin of OPA859. 1) At "6 Pin Configuration and Functions" of datasheet, FB pin is I (input). However, in Figure 50, the FB pin is connected to the output of the amplifier, so it looks like an…
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  • OPA859: PD voltage

    TI Thinks Resolved
    Part Number: OPA859 I want to know what is the maximum withstand voltage of PD terminal? For example, 5V or 3.3V will damage the PD pin? If it exceeds 1.8V, will it be considered as enable mode? What happens when the voltage exceeds 1.8V?
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  • RE: WEBENCH® Tools/OPA859: PSPICE model for OPA859

    Resolved
    Hello Sima, Thank you for your reply. I could simulate of OPA859. Your answers and training videos were very helpful. Thank you very much, Ikuo

  • OPA859: BUF802 CST MWS

    TI Thinks Resolved
    Part Number: OPA859 Other Parts Discussed in Thread: TINA-TI , , BUF802 Hello, I am trying to include the OPA859 amplifier into a 3D EM Co-simulation with CST MWS for an integrated antenna and circuit simulation. I am unable to import the TINA-TI SPICE…
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  • OPA859: TIA with Gain switching

    Resolved
    Part Number: OPA859 Other Parts Discussed in Thread: TMUX136 , OPA3S328 , OPA3S2859-EP , LMH32401 , OPA3S2859 Hi, This is very similar to the question posted in the forum https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/754286…
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  • OPA859: NC pin

    Resolved
    Other Parts Discussed in Thread: OPA859 Hello, I have questions about NC pin of OPA859. OPA859 pin2 is NC, means not connect, datasheet explain user not connect this pin to any circuit. But nc has a little ambiguous meaning for user, is nc means opa859…
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  • OPA859: 4-pole LPF with two 2-pole Sallen & Key won't simulate properly

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    Part Number: OPA859 Other Parts Discussed in Thread: OPA659 , OPA2810 , OPA2822 , OPA858 , , TINA-TI I used the TI Filter Design Tool to get a 4-pole Butterworth design using two Sallen & Key stages. Corner frequency was design at 4 MHz, yet the simulation…
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  • OPA859-Q1: What are "Common-mode input capacitance" and "Differential input capacitance"?

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    Part Number: OPA859-Q1 Other Parts Discussed in Thread: THS3062 Hi team, What are "Common-mode input capacitance" and "Differential input capacitance"? Do you have equivalent circuit model for explaining them? Transimpedance amplifier looks low input…
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