Precision Amplifiers

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Precision Amplifiers

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photodiode Amplifier noise
Related Posts

  • Forum Post: Re: How can I design a Photodiode Amplifier Circuit optimized for 470nm wavelength?

    Grant3050
    I have done several low noise, wide dynamic range designs with photodiodes and sometimes the only solution to external noise is shielding. You need to seperate the source of the "noise" you are seeing. There is optical "noise" or interference (that can be due to ambient light, reflections...
    on May 24, 2010

  • Forum Post: Re: Photodiode Amplifier problem

    Vinay Shrivastava
    Hi , Like your case i am also poor in electronics background however having reasonable control in MCU . In my project i need to use photodiode as position sensor by detecting laser light falling on the photodiode . I plan to use ADCs of microcontroller and scan voltages across all photodiodes . One having...
    on Sep 8, 2010

  • Forum Post: Re: How can I design a Photodiode Amplifier Circuit optimized for 470nm wavelength?

    Neil Albaugh
    Andreas; Your application requires very high bandwidth (100MHz to 1GHz) and high sensitivity at the same time-- this puts it out of range of a PIN photodiode. To achieve what you want, requires a detector that provides internal gain, such as an avalanche photodiode (APD) or even a photomultiplier...
    on Apr 24, 2011

  • Forum Post: Re: How can I design a Photodiode Amplifier Circuit optimized for 470nm wavelength?

    Neil Albaugh
    Grant; Your recommendations are all excellent but one-- that one is a trap that almost everyone falls into when first designing photodiode amplifiers. :...use as large a photodiode as you can but then be careful that the capacitance doesnt become too large to limit the frequency...." That...
    on Apr 25, 2011

  • Forum Post: Precision Photodiode comparator

    Julien GUY
    Dear, I found a "Precision Photodiode Comparator" application in the LM111 datasheet. Have you got an update of this circuit with ROHS components? Have you got technical notes about this application? Thanks and best regards.
    on Jun 16, 2011

  • Forum Post: Please recommend an amp for my application

    Inyong Kwon
    Hello. I am a graduate student in U of Michigan. Our research group has made photodetectors by ourselves. It has been very successful. Now, for the next step, we would like to see the current shape from our detector on a oscilloscope. So, we are looking for special amplifiers because the output current...
    on Sep 13, 2011

  • Forum Post: Photodiode AC Amplifier

    Vianney P
    Hi, I want to build a photodiode amplifier to get an AC signal at a frequency of 1 Mhz. My photodiode has a parasitic capacitance of about 4pF. I want my system to work in a dark room or with sun light beams on the photodiode. => The photocurrent would vary from about 0.1µA to 70µA...
    on Apr 15, 2012

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