Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.



Search tips
Showing 20 results View by: Thread Post Sort by
    Answered

  • OPA855DSGEVM: Help with test measurement setup according to User's Guide

    Resolved
    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA858DSGEVM , Tool/software: Hi there, I recently purchased a OPA855DSGEVM and OPA858DSGEVM to evaluate the amplifier. For both boards, I have the following setup Vcc = +2.5V GND = 0.0V Vee = …
    • Resolved

  • OPA855DSGEVM: Layout a PCB with 4 OPA855, how to handle the power plane or layers

    TI Thinks Resolved
    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 I am designing a board with 4 OPA855 on a 4 layer board. Looking at the evaluation board layout, it split the power plane and used the upper half for the positive(VS+) and the bottom half…

  • OPA855DSGEVM: Discrepancy between the measured gain bandwidth of OPA855 Evaluation Board and the product manual

    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 Hi, team, We bought an OPA855 evaluation board from TI and built a circuit network based on Page 8 of the product manual (VS+ = 2.5 V, VS– = –2.5 V, VIN+ = 0 V, RF = 453 Ω, Gain = 7 V/V…
    • Answered

  • OPA855DSGEVM: Gerber file issues

    Resolved
    Part Number: OPA855DSGEVM Hey there, I am about to design an OPAmp TIA board with the OPA8551. I have found the gerber files here and a wanted to double-check my own design with them. Unfortunately, I do not quite understand on which copper layers the…
    • Resolved

  • OPA855DSGEVM: Power and Resistor Value

    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 , OPA859 , OPA856 , OPA861 , TLV3603E Hello E2E Experts, Good day. I am interested in powering a laser diode. It is a simple design, I have a clock generator that outputs +7dBm of power as a…
    • Answered

  • RE: OPA855DSGEVM: CE/EU Declaration of Conformity (aka EU DoC) required

    Resolved
    Hello Chris, The formal processes are occasionally longer than we would ideally prefer; please know our team is working on this and either Sima or myself will provide updates as we can do so. As Sima mentioned, this is not an issue of the OPA855DSGEVM…

  • OPA855DSGEVM: offset voltage effected by capacitor on IN+

    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 , Dear team, When we try to develop our own EVM to evaluate the performance of OPA855 in our TOF Lidar application, we found that the measurement results of offset voltage is very easy to…
    • Answered

  • OPA855DSGEVM: OPA855 as high speed TIA, oscillating

    Resolved
    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 Hi all, I am adapting this EVM to be a TIA with Rf = 30k. I have connected a high speed balanced detector with diode capacitance about 260fF capacitance (520fF total) to the -VE input directly…
    • Resolved
    • Answered

  • OPA855DSGEVM: Gerber files of OPA855DSGEVM

    Resolved
    Part Number: OPA855DSGEVM Hello, I tryed to find OPA855DSGEVM gerber files and I couldn't find it online or in previous E2E posts. Is it possible to get those files? Also, is this substrate made of PTFE? Kind Regards, Tomoki
    • Resolved

  • OPA855DSGEVM: High gain peaking on EVM

    Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 Hello I have tested a Transimpedance amplifier on OPA855DSG evaluation module having a bandwidth of 380MHz with a gain of 6K. The transimpedance amplifier employs OPA855 and feedback resistor…

Didn't find what you are looking for? Post a new question.