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  • OPA350: opa350

    Part Number: OPA350 Dear everyone, I made a Photodiode Transimpedance Amplifier as the picture. I did not know why the voltage drift happened, although the light intensity was stable. In this circuit, I used a feedback resistor which is a series…

  • OPA350: OPA350 the welding requirements

    Part Number: OPA350 Hi sir: when we welding the OPA350 chips. someone is failure. So may i get the requirements of how to welding the chips?
    • Answered

  • OPA350: Discrepancy between macro-models: TINA-TI vs. Reference Designs

    Resolved
    Part Number: OPA350 Other Parts Discussed in Thread: TINA-TI , , THS4551 Hi, this thread is related to already closed thread https://e2e.ti.com/support/amplifiers/f/14/p/835567/3116784?tisearch=e2e-sitesearch&keymatch=opa350#3116784 . I have noticed…
    • Resolved

  • OPA350: DFMEA for OPA350

    Part Number: OPA350 Hello, For DFMEA failure analysis, looking at the OPA350 op amp internal diagram below: It seems the input voltage on the op amps + and – terminals will not likely get to the output of the op amp in case the op amps fail. In case…

  • OPA350: Unity gain OPA350 oscillates when driving 10 ft. Coax Cable

    Part Number: OPA350 Hi, A unity gain OPA350 is driving a 10 ft RG-58 cable terminated in an AC-Coupled 50 Ohm input spectrum analyzer. A circuit schematic is pasted below. The OPA350 is powered by a +5V single supply. ALA_MID is at 2.5V. The two…
    • Answered

  • OPA350: A survey of input capacitance modeling and specifications for VFA amplifiers

    Resolved
    Part Number: OPA350 Other Parts Discussed in Thread: THS4631 So this input capacitance issue is coming in from a number of directions lately - let me attempt a survey of where there might be some confusion, 1. So those of us (like Bruce Trump and…
    • Resolved
    • Answered

  • RE: OPA350: Capacitive loading with intent to filter

    Resolved
    Hi Jorge, Please find below a pdf file with instructions on how to upload models in TINA. Thank you, Best Regards, Luis Extracting new TINA macromodels.pdf
    • Answered

  • RE: TINA/Spice/OPA350: Vos - Simulation issue

    Resolved
    Arivalogan, You are correctly simulating Vos for a single supply configuration by shifting the Vcm to mid-supply but I am not sure where you got OPA350 macro-model. I just download the model from TI website and it properly simulates Vos of 150uV for…

  • RE: OPA350: Input offset voltage calculation using Tina -TI ; OPA 350

    I just downloaded the OPA350 macro-model and configured it in a buffer with single and dual supplies and they both show the input offset voltage of 127uV - see below. OPA350 offset.TSC
    • Answered

  • OPA350: to Drive DSP ADC Vref Pins

    Resolved
    Part Number: OPA350 Other Parts Discussed in Thread: OPA4350 Hello, We have a question regarding using the OPA350 to drive voltage reference pins on the TMS320F28375DZWT. Is it better to drive the different ADC VREF pins with 4 separate OPA350 …
    • Resolved

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