High Speed Amplifiers

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photodiodes
Related Posts

  • Forum Post: Design topology to bootstrap a photo-diode

    Wilson Teo
    Hi, One limition consideration on the bandwidth of the Transimpedance Amplifier is the Diode capacitance. As I am interested to sampling different types of diodes at high bandwidth, the diode capacitance of all these diodes are all different. Can TI recommend design topology to bootstrap the...
    on Dec 17, 2009

  • Forum Post: Transimpedance Considerations for High Speed Amplifiers - Application Report SBOA122

    Karen
    Designing for high-resolution detection circuits using photodiodes? See the new Application Report " Transimpedance Considerations for High-Speed Amplifers " by Xavier Ramus.
    on Dec 3, 2009

  • Forum Post: Noise in transimpendance amplifier with OPA847

    Luis M Brugarolas
    I am designing a Transimpendance Amplifier for a photodiode with OPA847, which has excelent bandwidth and noise performance. I have found that noise performance is not as expected. Then, I decided to make a minimalist approach: mount just feedback resistor and make noise measurements with it. The...
    on Feb 16, 2011

  • Forum Post: OPA847 output impedance for cascade

    Merlin Cooper68095
    Dear all, I wish to receive a clarification of the paragraph on page 10 of the OPA847 datasheet which states: "If the signal source is actually the low impedance output of another amplifier, RG should be increased to be greater than the minimum value allowed at the output for that...
    on Mar 1, 2011

  • Forum Post: OPA657 Photodiode Transconductance Amplifier problem

    Muhammad Talha
    Hello All, I am trying to simulate a circuit but somehow i am not getting the response that is supposed to come out. I am attaching the circuit file herewith. The frequency response of the circuit should be like this. Instead I am getting a flat line. I am new to high speed...
    on Mar 19, 2012

  • Forum Post: RE: OPA380 with photodiode operation

    taylor Smith1
    Typically photodiodes are used with either 0 voltage bias or reverse bias so that with no light hitting them, 0 current, flows. Reverse biasing reduces the photodiode capacitance and can speed up the rise and fall time if that is important. For transimpedance amps, Vout = I*Zf. With the circuit as...
    on May 7, 2013

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