Search tips
Showing 78 results View by: Thread Post Sort by
    Answered

  • OPA818: Stability when Calibrating OPA818 as a TIA

    Resolved
    Part Number: OPA818 Tool/software: Hi I have an OPA818 application with OPA818 configured as a 9M TIA with a small amount of capacitive feedback to give -3dB transimpedance at 1MHz. For testing I drive it fr om a signal generator via a 9M resistor so…
    • Resolved
    • Answered

  • OPA818: Does using the FB pin Vs output pin effect performance ?

    Resolved
    Part Number: OPA818 Tool/software: Hi I'm using the OPA818 as a high trans-impedance 1MHz TIA. What difference in performance would I notice if I used the feedback pin instead of taking feedback directly from the output ?
    • Resolved
    • Answered

  • OPA818: High Pass Filter and High Gain Circuit for LiDAR Rx Module

    Resolved
    Part Number: OPA818 Tool/software: Dear TI Engineers, I am designing a circuit for LiDAR Rx module. The circuit I made shows something I didn't expect. So I would like to share its result and hope to get some advices. Rx Module circuit The current…
    • Resolved
    • Answered

  • OPA818: TIAN Simulation on High Pass Filter

    Resolved
    Part Number: OPA818 Tool/software: Dear Engineers I am a beginner in this filed so I don't know what makes this error. I want to add a high pass filter in front of OPA818 at the circuit as follows. So I simulated the circuit having high pass filter…
    • Resolved

  • OPA818: PCB design question with OPA818 (cutout plane under V- and Vout)

    Part Number: OPA818 Tool/software: Hello TI teams and forum users. Firstly hope all is doing well. We are finishing our PCB board using multiple OPA818. First as TIA and others as classic opamp. We amplify SiPM photodiode which consist of current pulse…
    • Answered

  • OPA818: Must OPA818 thermal pad be connected to GND?

    Resolved
    Part Number: OPA818 Other Parts Discussed in Thread: OPA657 , Tool/software: Hello guys, One of my customers uses OPA657 for their current products. Also they are considering replacing this OPA657 with OPA818 for their next products. At this moment, they…
    • Resolved
    • Answered

  • OPA818: Measurement noise much higher than datasheet specification

    Resolved
    Part Number: OPA818 Tool/software: Hello TI engineer team, I designed a charge amplifier with OPA818 but the noise measurement was found about 20 times higher than simulation results. So, I designed the following voltage amplifier as a test circuit dedicated…
    • Resolved

  • RE: OPA818: Transimpedance amplifier - maximum feedback and output current

    Hi Simon, just a gentle reminder...
    • Answered

  • RE: OPA818: Ripples and lower bandwidth than designed/simulated for TIA configuration

    Resolved
    Thanks Sima, this is very helpful. Will have a look and let you know if I have any more questions!
    • Answered

  • OPA818: Need a Pspice model

    Resolved
    Part Number: OPA818 Hi I'm trying to simulate the OPA818 and compare to some ADI Opamps to see which is the best fit for my application. As there are o easily downloadable Pspice models I tried to open in Tina with the plan to export to Pspice. However…
    • Resolved

Didn't find what you are looking for? Post a new question.