• RE: LTC6268-10 output oscillating

    Hi Jino:

    I test my TIA circuit.The scheme of LTC6268 is as follow:

    And the waveform is like this.

    By adjusting the feedback resistance and feedback capacitance.  The oscillation cannot be lowered.Can you help me to eliminate the oscillations?

    The LTC6268…

  • LTC6268 behavior during recovery

    I am attempting to reset the capacitor of an integrator circuit by shutting down the chip (driving pin 8 with a 4 usec low-active pulse) and pulling the output down with a 10K resistor (capacitor is 3.3 pF). Discharge of the capacitor should occur through…

  • LTC6268-10 output oscillating

    Hi engineer :

     The scheme is as follows:

    Then I test the J11 signal.The J10 is not connect anything.

    But the waveform is like this.What are wrong.The input or the power?

    Then can I use LT3092 to test the TIA circuit.

    Connect J3 to TIA's J10.Looking…

  • LTC6268 - Maximum achievable transimpedance gain


    What is the maximum achievable transimpedance gain with LTC6268. I wish to design a TIA to amplify a current pulse whose magnitude is around 100 pA and FWHM (full width half maximum) of the pulse is around 0.2 ms for which the rise time expectation…

  • LTC6268-10 PCB铺铜

    你好,我设计的20MHz光电转换电路的pcb布局如截图所示,使用的运放是LTC6268-10,根据datasheet的描述,需要在输入端口增加模拟地保护环以及“Other signals should be routed well away from this signal path and there should be no internal power planes under it”,这段英文的含义我不是很清楚,它是指将和芯片的同相输入和反向输入端焊盘下的铜皮掏空,以及将与输入节点相连的所有的电阻焊盘下的铜皮都掏空吗…

  • LTC6268-10 propagation delay time

    Hi engineers:

    I use the LTC6268-10 as Photomultiplier Tube Post-Amplifier.The scheme as follows.

    Example waveform from LTC6268-10 datasheet.

    What is the delay between input and output?I test it about 10ns,is it right?Is there a nominal value?Thank you…

  • Coupling of LTC6268-10 and AD8336

    Dear Enigeer!

       My purpose is to amplify the current signal generated by APD into a voltage signal through a two-stage amplifier. The first stage amplifier is going to use ltc6268-10 to amplify the current signal into a voltage signal, and the second stage…

  • LTC6268传递函数


  • LTC6268-10 feedback capacitance mitigation with single supply


    I'm designing a transimpedance amplifier based on LTC6268-10 amplifier.
    I read through the documentation and I saw the DC2414A design files, so I understand that to lower the parasitic capacitance of the feedback resistor placing a ground trace…

  • LTC6268-10 input offset higher than specified?

    Dear Analog Designers,

    I have designed a compact PD amplifier for scientific research purposes which has the second stage shown in the attached schematics.

    - Power supply is 3.3V to 0V.

    - The input signal before C5 is 1.65V biased and MAX 2 x 37.5mV wide…