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  • OPA855: OPA855

    Part Number: OPA855 Tool/software: Hi, I am using the OPA855 to create a inverted proportional amplification circuit, but the output signal is behaving strangely. What could be the issue? I am using LTspice software, and the output node is between C3…

  • OPA855: Troubleshooting High-Frequency Oscillations in OPA855-based TIA Circuit for PMT Signal Amplification

    Part Number: OPA855 Other Parts Discussed in Thread: THS4302 Tool/software: Hi, I'm seeking some assistance with an issue I'm encountering in my TIA (Transimpedance Amplifier) circuit based on the OPA855 op-amp. The circuit was previously working well…

  • OPA855: Self-excited oscillation occurs in the TIA circuit by OPA855, please help, thanks.

    Part Number: OPA855 Tool/software: Hi, I am debugging a TIA circuit, it's a single stage amplifier by OPA855, there are schematic and PCB layout as below: The circuit outputs a high frequency oscillating waveform when testing in dark environment,…
    • Answered

  • OPA855: TIA with bootstarp stability issue

    Resolved
    Part Number: OPA855 Other Parts Discussed in Thread: OPA695 , Tool/software: Hello, I am currently designing a TIA with a bootstrap circuit using the OPA855. Additionally, I am incorporating the OPA695 to achieve a higher gain. The target bandwidth is…
    • Resolved

  • OPA855: TIA PSpice simulation issue with Opamp OPA855

    Part Number: OPA855 Tool/software: Hello TI teams, Firstly hope all is doing well. In the case of the implementation of a TIA for SiPM sensor application I tried to simulate a dummy TIA circuit using OPA855 but the output gain is unexpected (very low…

  • OPA855: RFQ

    TI Thinks Resolved
    Part Number: OPA855 Tool/software: Hi, i am interested to purchase PN OPA855 in it's die level (not the packaged form) appreciate if you could quote for me the following quantities: 100 500 1000 in case you do not deal with such request, appreciate…

  • OPA855: OPA855: When the OPA855 is designed for TIA, what is the maximum closed-loop bandwidth it can achieve?

    TI Thinks Resolved
    Part Number: OPA855 Tool/software: Hello, everyone. I am currently going to build a TIA circuit using OPA855, I want to make the TIA bandwidth up to 1.7GHz, and I am designing it based on the values from the TIA calculator. But the bandwidth of the simulation…
    • Answered

  • OPA855: How to make the transimpedance gain lower with opa855

    Resolved
    Part Number: OPA855 Tool/software: Hello, I made a transimpedance amplifier with opa855. I use the fast laser pulse(edge time is 1.5ns) and avalanche photodiode(rise time 0.6ns). So, I have a problem associated with stability. opa855 is stable with almost…
    • Resolved

  • OPA855: When the OPA855 is designed for TIA, what is the maximum closed-loop bandwidth it can achieve?

    TI Thinks Resolved
    Part Number: OPA855 Tool/software: Hello, everyone. I am currently going to build a TIA circuit using OPA855, I want to make the TIA bandwidth up to 1.7GHz, and I am designing it based on the values from the TIA calculator. But the bandwidth of the simulation…

  • OPA855-Q1: OPA855-Q1

    Part Number: OPA855-Q1 Other Parts Discussed in Thread: OPA855 We are developing Lidar by applying OPA855-Q1. OPA855-Q1 product bandwidth is 8GHz. The PD Bandwidth we are applying is 2GHz. We use the product at 100MHz. Is it possible for the product to operate…

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