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  • OPA858-Q1: OPA858-Q1

    TI Thinks Resolved
    Part Number: OPA858-Q1 Other Parts Discussed in Thread: OPA858 , OPA859-Q1 , PSPICE-FOR-TI , TINA-TI Tool/software: Subject: Query Regarding SPICE Model Issues in Simulation Dear Technical Support, I am currently working with the [Op-Amp Model, e.g., OPA858…

  • [FAQ] [H] Frequently Asked Questions - High Speed Amplifiers Selection Guide - Transimpedance Amplifiers

    Frequently Asked Questions: Amplifiers >> High Speed Amplifiers >> HSA Selection Guide >> Transimpedance Amplifier Selection Guide JFET Input Bipolar Input CMOS Input FDAS Power Amps VGAs TIAs Introduction: The…
    • Answered

  • RE: OPA607-Q1: Functional Safety FIT Rate, FMD and Pin FMA for OPA607-Q1

    Resolved
    Hello Sognzhen, MTBF/FIT estimates can be found in the link Kai shared. For Pin FMA, the OPA607-Q1 will be very similar to these examples: OPA858-Q1 and OPA2365-Q1 . Our high speed amplifiers tend to be on the straightforward end on pin failure modes due…

  • LMH32401: Transimpedance Amplifier

    Part Number: LMH32401 Other Parts Discussed in Thread: LMH34400 , OPA858-Q1 Hi Team, seeking for a suggestion looking for transimpedance amplifier with a high bandwidth to receive and amplify signals comprising frequencies between 1 kHz and 20 MHz obtained…
    • Answered

  • OPA855-Q1: Why the recovery time of the OpAmp becomes longer?

    Resolved
    Part Number: OPA855-Q1 Other Parts Discussed in Thread: OPA858-Q1 , OPA858 Hi together, figure1 is my circuit schematic. My circuit is having a problem. After switching the channel of the switch chip, The output recovery time of the OpAmp (OPA855-Q1) becomes…
    • Resolved

  • OPA858: Device model in PSpice for TI does not model the disable function

    TI Thinks Resolved
    Part Number: OPA858 Other Parts Discussed in Thread: OPA855 , LMH5401 , SN74LVC2G66-Q1 , LMH34400 I wouild like to use PSpice for TI to simulate a circuit using the OPA858 and OPA855, but the models are missing the disable function which we need to simulate…

  • OPA855-Q1: No negative output from TIA - positive output is good

    Part Number: OPA855-Q1 Other Parts Discussed in Thread: OPA858 , OPA855 I'm debugging a TIA circuit using the OPA855 or the OPA858.this pcb has five identical circuits and I'm observing this error. I'm testing for both negative and positive photo…

  • OPA855-Q1: Is it high impedance output in the case "power down connection" is on low logic?

    TI Thinks Resolved
    Part Number: OPA855-Q1 Other Parts Discussed in Thread: OPA858-Q1 , OPA859-Q1 , Hi team, Is it high impedance output in the case "power down connection" is on low logic? How does "power off mode" makes OPA855-Q1, OPA858-Q1, and OPA859…

  • RE: OPA858: DC Offset Errors ???

    Hi Stewart, Stewart Forbes said: I forgot to mention in one of my earlier replies, but yes I have decoupling caps ( 100nF // 6u8 ) within about 10mm of the chip I don't want to sound nitpicky or pedantic , but 10mm might be to far away from the OPAmp…

  • RE: OPA818: The actual bandwidth of the TIA circuit cannot meet the design requirements

    Hello Liu, Thank you for sharing this detailed analysis. The datasheet example is applicable in simulation. T he TIA calculator snippet from the datasheet design shows 0.092pF feedback capacitance which is very difficult to achieve in practice as seen…

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