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  • OPA847: Negative feedback amplifier stability

    Part Number: OPA847 I am using the OPA847 as front-end amplifier for an EMAT acquisition module, as in the schematic below: It works as expected without C4, but how we need to limit the bandwidth due to external noise, by adding it the amplifier becomes…

  • OPA847: Output distortion

    Part Number: OPA847 Tool/software: Hi, Could you help to review the SCH, the output distortion, test data as below 1550nm laser radar APD receiver integrated module test data .xlsx

  • OPA847: PCB design questions my transimpedance amplifier

    Part Number: OPA847 Other Parts Discussed in Thread: OPA855 Tool/software: Hello, I’m currently working on a 4-layer PCB for a transimpedance amplifier design, and I’m looking for resources and feedback on best practices. I’ve already reviewed some…

  • OPA847: TIA运放选型

    Part Number: OPA847 Tool/software: APD: 上升时间8.9ns TIA运放/GBW>3GHZ/噪声优于150fW/√Hz/供电正负5V/小型封装
    • Answered

  • OPA847: OPA847 in pspice for Ti

    Resolved
    Part Number: OPA847 Other Parts Discussed in Thread: TINA-TI OPA847 cannot be used in pspice for Ti although .lib and .old are available in the library
    • Resolved

  • OPA847: Large overshoot and oscillation problem on my TIA amp.

    Part Number: OPA847 Other Parts Discussed in Thread: DEM-OPA-SO-1A , TINA-TI , , LMH6629 , LMH32401 Tool/software: Hello, I’m a beginner with transimpedance amplifier design. APD: - Photocurrent: pulses of a few µA, width on the order of 10 ns …

  • OPA847: Using TINA to simulate the capacitance Ccm, Cdiff of OPA847

    TI Thinks Resolved
    Part Number: OPA847 Hi team, How to use TINA to simulate the capacitance Ccm, Cdiff of OPA847? The gain of OPA847 should be greater than or equal to 12 in order to be stable. Is it necessary for the DC circuit gain of the simulation circuit to be…

  • OPA847: opa847

    Part Number: OPA847 hello everyone, i designed a transimpedance amplifier circuit using opa847, with the cd=30pf， rf=1k when the cf=0pf, the fft of the output noise seems to have a high q, while i tuning cf to 0.3pf， the q seems to decrease and…
    • Answered

  • OPA847: recommended compensation circuit for OPA847 - low gain, non-inverting

    Resolved
    Part Number: OPA847 Other Parts Discussed in Thread: THS3491 , OPA695 , LMH6702 , OPA3695 Dear Sir or Madam, I would like to use the OPA847 in non-inverting configuration at a gain of 2. Is there a recommended external compensation circuit for this…
    • Resolved
    • Answered

  • OPA847: Capacitance calculation to remove oscillations at low gain regime (transimpedance configuration)

    Resolved
    Part Number: OPA847 Bonjour, Nous avons un circuit PCB avec l'amplificateur OPA847 en configuration transimpédance. Nous souhaitons travailler dans un régime de faible gain avec une résistance dans la boucle de rétroaction de 220 Ohm. Le circuit a été…
    • Resolved

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