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  • OPA838: Fixed LTSPICE model

    TI Thinks Resolved
    Part Number: OPA838 Other Parts Discussed in Thread: TINA-TI following on from this post: https://e2e.ti.com/support/tools/simulation-hardware-system-design-tools-group/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/769211/tina-spice…
    • Answered

  • OPA838: Filter non-inverting input of operation amplifiers or directly to GND?

    Resolved
    Part Number: OPA838 In the following configuration on this operation amplifier (OPA838), which is transimpedance configuration, can I connected the non-inverting input directly to GND , or should I use this filter? Not using this filter can cause instability…
    • Resolved

  • OPA838: Minimum supply voltage

    Answer Suggested
    Part Number: OPA838 Other Parts Discussed in Thread: OPA356-Q1 , OPA607 Team, OPA838 has minimum supply voltage of 2.7V. Can it be operated below 2.7V supply voltage? (With reduced function, if applicable.) What happens if the supply voltage gets…
    • Answered

  • OPA838: Keep the circuit stable even without the input capacitance on inverting pin of a transimpedance amplifier

    Resolved
    Part Number: OPA838 Tool/software: Dear Engineers, I have designed an transimpedance amplifier for an ultrasound transducer as follows: Ultrasound transducer feature: C=1nF, R=1.2K, working frequency between 2-3 MHz 8623.Transimpedance test…
    • Resolved

  • OPA838: OPA838

    TI Thinks Resolved
    Part Number: OPA838 Hello everyone, I am trying to simulate the OPA838 in LT-SPICE. I had followed the procedure described here: https://e2e.ti.com/support/tools/simulation-hardware-system-design-tools-group/sim-hw-system-design/f/simulation-hardware…

  • OPA838: Unity-gain stable rail-to-rail opam replacement of LT6230

    Answer Suggested
    Part Number: OPA838 HI, I'm finding a opamp with rail-to-rail input/ouput and Unity-gain stable with similar bandwidth to LT6230IS6-10. The cross reference of TI recommend OPA838, but it's decompensated. So are there any other parts from TI? Thanks…

  • OPA838: non-linear temperature drift - transimpedance amplifier

    Part Number: OPA838 Other Parts Discussed in Thread: OPA837 Hello Team, my customer has designed the following TIA and observe an non linear temp. drift issue: The supply voltage of the OPA838 is 0V and 3.3V, the VREF_OFFSET is 1.45V, so that…
    • Answered

  • OPA838: I need a pspice model for use in a third party simulator

    Resolved
    Part Number: OPA838 Hello, I work in a secured network. My work requires a lengthy vetting process for software to be brought across the gap. The TI simulator is not part of the approved software instances. I would like a stand alone pspice…
    • Resolved

  • OPA838: RF – Small Signal Low Noise Amplification and Demodulation

    Part Number: OPA838 Other Parts Discussed in Thread: OPA820 , , OPA684 , OPA683 , TLV3501 , LM2596 , LM2674 , TLE2426 , LM27762 , TINA-TI , LMV7219 Due to the requirements of the application, most notably temperature and vibration, I have been unable…

  • RE: TINA/Spice/OPA838: The OPA838 TINA spice model has occurred floating error for using some standard SPICE.

    Hi Akihiro, Thank you for your feedback. I have jot it down so that we can include it for future revision. Herman

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