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  • OPA857EVM-978: Issue setting OPA857EVM-978 into test mode

    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , OPA857EVM Tool/software: Hello, I recently purchased an OPA857EVM-978 evaluation module, along with some bare OPA857s for testing. After unpacking the board, I wanted to use it in…

  • OPA857EVM-978: Assistance Needed with OPA857EVM-978 0V At Output

    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: THS4541RGTEVM , OPA857 , OPA857EVM Tool/software: Hello TI Community, We are currently working with a Laser + photo monitor diode and attempting to read its output using the OPA857EVM-978 module…

  • OPA857EVM-978: can't measure output voltage

    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , OPA857EVM Hi Experts, Kindly help with the inquiry below. A customer is going through section 5.1 in the reference manual, but stuck right at the first point: www.ti.com/.../tidubx7…

  • OPA857EVM-978: Design Files

    TI Thinks Resolved
    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: TIDA-00978 , Tool/software: Hi, Please share the PCB design files and BOM. Best Regards, Amar Gaikwad

  • OPA857EVM-978: Using the board at 250V for APD Bias

    TI Thinks Resolved
    Part Number: OPA857EVM-978 Tool/software: Hello, I want to use this board with an APD that needs 250V DC for bias. If I remove C4 and C5 capacitors, I think I can apply 250V DC bias. Please let me know. Best Regards, Amar Gaikwad

  • OPA857EVM-978: 0 Volts at OUTN and OUT pin in both Test and APD mode.

    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 Hello, I am getting 0 Volts at OUTN and OUTP pins in both the TEST and APD mode. Vcc is 3.3 Volts. Ideally, I should have got 1.83 V at the OUTN pin. Regards, Amar

  • OPA857EVM-978: Increase output swing

    TI Thinks Resolved
    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , To evaluate the OPA857 I purchased a OPA857EVM-978 board but I am a bit confused by the output configuration of the board. First of all my board had R15 installed and not R14. So there…

  • WEBENCH® Tools/OPA857EVM-978: OPA857EVM-978

    TI Thinks Resolved
    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , , TIDA-00978 Tool/software: WEBENCH® Design Tools Hello, I'm, working on some device in automotive and I would like to use your product "OPA857EVM-978 - OPA857 Bandwidth Extension…
    • Answered

  • OPA857EVM-978: OPA857EVM

    Resolved
    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , OPA858 , OPA855 , OPA859 Number: CS0300295 Contact: Andrea Papi First name: Andrea Last name: Papi Short description: TIA Design for PMT Tube Phone: 003907558527543907 Email: andrea…
    • Resolved
    • Answered

  • OPA857EVM-978: Test Mode OUT & OUTN Voltages Doesn't Change with DC Bias

    Resolved
    Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 I'm trying to figure out the test mode right now, and the connection is as follows and I've attached a pic for the board: I've connected the TEST_SD pin to Vs to configure in test…
    • Resolved

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